Divergent natural selection's effects on populations typically are countered by migration. It has been shown that the balance between migration and selection limits genetic divergence within populations.
How does allele frequency fluctuate as a result of natural selection?Allele frequency is also impacted by natural selection. The prevalence of an allele will rise if it confers a phenotype that makes a person more likely to live or produce more children.
High rates of gene flow can lessen the genetic divergence between the two groups, increasing homogeneity. Migrants alter the distribution of genetic diversity among populations.
When disrupting variables are absent, gene frequencies tend to stay steady from generation to generation. Mutation, among other things, can alter the natural equilibrium of gene frequencies.
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Water snakes in Lake Erie are an example of how migration and natural selection can work against each other.
What is migration and selection?The movement of genes from one location or population to another is referred to as migration. Migrational selection occurs when certain genotypes migrate more than others. The evidence for migrational selection is examined. Migration can reduce fitness by constraining local adaptation, resulting in a "migration load," which causes persistent natural selection. The movement of populations, groups, or individuals is referred to as migration. Migration allows for gene flow, or the movement of genes from one population to another.Migration causes gene transfer from one population to the next. Migration is also known as gene flow because it involves the transfer of genetic material.To learn more about migration and selection, refer to:
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Soil is made up of both organic and inorganic matter.
O True
O False
Answer:
True
Explanation:
Soil consists of organic and inorganic matter
botox is a medical application using the toxin produced by clostridium botulinum to choose one: a. kill pathogenic microbes in the gut. b. relax muscle spasms. c. prevent recurrent infections. d. kill pathogenic microbes in the central nervous system.
Botox is a medical application using the toxin produced by clostridium botulinum to (b) relax muscle spasms.
Botulinum toxin, one of the most dangerous biological toxins, is a neurotoxin created by the bacterium Clostridium botulinum. C. botulinum produces eight exotoxins with unique antigens (A, B, C1, C2, D, E, F and G).
All serotypes inhibit acetylcholine, the major neurotransmitter at the neuromuscular junction, compromising with neuronal transmission and crippling limbs. Botulinum poisoning The typical duration of an injection-induced weakness is three months. The Clostridium botulinum toxin, which has paralytic properties, can be utilized to treat wrinkles and reduce muscle spasms.
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after two weeks, the scientists measured the increase in body fat in the mice. they also determined the amount of energy (in kcal/g) in the feces of both groups -- that is, the energy in the food molecules that was not extracted or absorbed by the mice. what experimental results would support the scientists' hypothesis? label the bars on the graphs to match the results predicted by the hypothesis.
Body fat of the lean germ-free mice that received microbes from genetically obese mice increases and their feces contains less energy food will support the scientists' hypothesis.
Since the researchers are determining whether or not microorganisms in the gut community are responsible for obtaining energy from meals, supplying additional calories to the host, and encouraging the development of greater fat deposits, they used obese mice.
Less body fat and more energy food in the feces of the lean germ-free mice that received microbes from genetically lean mice support their claim; that genetics may be a reason while the microbes in the obese mice absorb food, extract energy, and deposit fat in their host. An increase in body fat in the lean germ-free group that received microbes from the genetically obese donors will prove their claim.
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Interpret Figure 6 and predict the general growth trend for steelhead trout in a stream that is 22 degrees C
The general trend of the growth of the steelhead trout in the 22°C stream will be limited when figure 6 is interpreted.
What is Temperature?This is referred to as the degree of hotness or coldness of a substance and is influenced by heat energy. It can be measured using a thermometer and its SI unit is kelvin.
The interpretation of the figure 6 provided in the question means that that the general trend of the growth of the steelhead trout in the 22°C stream will be limited. This also means that the level of growth is at a controlled stage.
This is because the trout in question are in the zone of physiological stress at the temperature of 22°C in the stream when observed and is therefore the reason why limited was chosen as the most appropriate choice.
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The bar graph below shows the total amount of product from a chemical reaction performed at
three different temperatures. The same enzyme was involved in each case.
Answer:Quizlet
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The bar graph (P 58) shows the total amount of produce from a chemical reaction performed at three different temperatures. The same enzyme w
Answer · 0 votes
35 C created the most amount of product (2 mg), 25 C creates
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a graph shows the total amount of product from a chemical reaction performed at three different temperatures. the same enzyme was involved i
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•at 25 degrees C there was 1 mg of product •at 35 degree
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CHEMISTRY Effects of Temperatures on a Reaction Interpreting a Graph The bar graph shows the total amount of product formed from a chemical reaction that was performed at three different temperatures for the same time period. The same enzyme was involved each time in the chemical reaction 2 Describe the results at each temperature. Total Product (mg) 1
Answer · 1 vote
Interpretation from graph: From the graph it is clear that at first with rise in temperature product increases , but after a certain temperature (35oC) , product decreases with ri...
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Can you help me answer it please? I need it before 9pm today! Can...
Answer · 1 vote
Reactants are starting molecules that undergo chemical change in a chemical reaction. Based on diagram 3, an arrow in a chemical reaction represents a chemical change. It means that the reactants in the left side undergoes a reaction leading to the right-side products. The molecules that come after the chemical change are called products. They are the results of the chemical change of the reactants. Based on diagrams 5-8, another word for reactants is "substrates". Looking at our diagrams, you can see that the substrates attach to the enzyme in the left side. Therefore, in order for the reaction to take place with an enzyme, the reactants or substrate must attach to the enzyme. After the reaction takes place, you can see in diagrams 5-8 that the products formed leave the enzyme. The enzyme detaches the products from itself. You can see various drawings of enzyme showing different shapes of active sites. This is because each enzyme has different active sites. In diagram 10, there are 3 …
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Explanation:
osteogenesis imperfecta (oi) is a genetic disorder linked to mutations in the genes that encode the components of type 1 collagen. the disorder is primarily characterized by individuals having bones that fracture easily. however, it also includes other features, such as blue sclera, a condition in which the whites of the eye (the sclera) are blue, and early-onset hearing loss. these characteristics of oi indicate that the genes involved exhibit pleiotropy. crossing over. discrete expression. quantitative traits. phenotypic plasticity.
These characteristics of osteogenesis imperfecta (oi) indicate that the genes involved exhibit pleiotropy. Thus, the correct option for this question is A.
What is osteogenesis imperfecta?Osteogenesis imperfecta may be defined as a type of genetic disorder that affects the connective tissues and is significantly characterized by extremely fragile bones that break or fracture easily.
Pleiotropy may be defined as a type of phenomenon in which a single gene exhibits multiple phenotypic expressions. These genes affect the metabolic pathways that considerably result in the different phenotypes.
Therefore, these characteristics of osteogenesis imperfecta (oi) indicate that the genes involved exhibit pleiotropy. Thus, the correct option for this question is A.
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Explain the function of organelles present in a prokaryotic cell.
Explanation:
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achondroplastic dwarfism involves a spontaneous genetic mutation resulting in chondrocytes that fail to multiply and enlarge at epiphyseal plates. considering this information, why do flat bones develop normally in a person with achondroplasia?
In achondroplasia, the frame has trouble turning cartilage into bone, particularly in the long bones of the arms and legs. This outcome in shortened bones, brief stature, and other different physical characteristics.
In achondroplasia, this protein starts offevolved to characteristic abnormally, slowing down the growth of bone inside the cartilage of the growth plate. This leads to shorter bones, abnormally-shaped bones, and shorter stature; a person top in human beings with achondroplasia is between 42 and 56 inches.
Dwarfism (skeletal dysplasia) impacts bone growth in your body. The most common bones that dwarfism influences are the long bones inside the arms and legs, however, it is able to have an effect on different bones together with the bones to your legs and arms as well as your stomach and head.
Achondroplasia is a bone increase sickness that causes disproportionate dwarfism. Dwarfism is defined as a situation of quick stature as a person. people with achondroplasia are brief in stature with a normal-sized torso and brief limbs. it's the most common form of disproportionate dwarfism.
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A short summary of Darwins 5 Points.
Answer:More organisms are produced than can survive because of limited resources.
— Individuals within a population vary in their traits; some of these traits are heritable -- passed on to offspring.
— Some variants are better adapted to survive and reproduce under local conditions than others.
Explanation:
dietary fiber select one: a. is only in animal sources of food b. supplies more energy, gram per gram, than fat c. is not fully digested by the human intestinal tract d. promotes tooth decay
Dietary fiber c. is not fully digested by the human intestinal tract.
In the field of science, dietary fiber can be described as a part of food that is taken from plants that cannot be digested by humans.
Dietary fiber derived from plants is considered valuable for the body, especially in removing constipation. It is also known to lower the risk of a person from getting diabetes.
All other food nutrients have the ability to be broken down and be digested by the human body. However, the dietary fiber is not broken down and remains intact throughout the process of digestion. It is released from the colon and like other nutrients is not absorbed.
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. in mitochondria, exergonic redox reactions a. are the source of energy driving prokaryotic atp synthesis. b. are directly coupled to substrate-level phosphorylation. c. provide the energy that establishes the proton gradient. d. reduce carbon atoms to carbon dioxide. e. use atp to pump h out of the mitochondrion.
Option c In mitochondria, exergonic redox reactions provide the energy to establish the proton gradient
Phoimage illustrative of mitochondria Cell organelles called mitochondria, which are membrane-bound, generate the majority of the chemical energy needed to power a cell's metabolic processes (plural: mitochondrion).Adenosine triphosphate is a little molecule that stores the chemical energy generated by the mitochondria (ATP). By using the energy created during the oxidation of the food we eat, oxidative phosphorylation—the traditional function of mitochondria—generates ATP. Most biochemical and physiological processes, including growth, mobility, and equilibrium, all require ATP as their principal energy source. Mitochondria are organelles in cells that transform food energy into a form that cells can utilise. The fluid around the nucleus of each cell contains hundreds to thousands of mitochondria (the cytoplasm).
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how does photosynthesis impact plants and animals
Answer:
Photosynthesis creates all of the energy that fuels living organisms. Animals that eat plants acquire their energy from the stored sugar in plants, and animals that eat those animals obtain that same energy. Thus, all levels of a food web are still fueled by the energy developed by photosynthetic organisms.
Explanation:
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How can we differentiate so many different foods if we can only taste four flavors on our tongue: sweet, bitter, sour, and salty?
We can detect sweet, sour, salty, bitter, and savory tastes because of the presence of out taste buds. It has microvilli that are described to be very sensitive microscopic hairs. They are the one responsible for sending the message of taste to the brain so you will be able to know or differentiate the different taste of food. Each taste has a the presence of chamical substances that is stimulating the receptors on the taste buds. We are able to taste our food because of the sensory cells in our taste buds. We identify the flavor of our food by the odor that comes from our sense of smell because flavor includes taste and odor.
The tendency to respond to a conditioned stimulus that is similar, but not identical, to the original conditioned stimulus is called _____.
The tendency to respond to a conditioned stimulus that is similar, but not identical, to the original conditioned stimulus is called Stimulus generalization.
The capacity to act in a new situation according to a strategy learned in earlier, analogous circumstances is known as stimulus generalization. The challenge is figuring out which elements of the learning circumstances should be applied to all situations.
When an organism's response that was previously conditioned by one stimulus can then be elicited by another stimulus that shares the same properties, this phenomenon is known as stimulus generalization. A conditioned stimulus is a stimulus that may potentially cause a conditioned response. The ringing of the bell served as both the conditioned stimulus and the conditioned response in the experiment as described. It's crucial to understand that the neutral stimulus changes into the conditioned stimulus.
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What condition causes blood glucose to remain at higher than normal concentrations in the prediabetic patient?.
Answer:
Prediabetes usually occurs in people who already have some insulin resistance or whose beta cells in the pancreas aren't making enough insulin to keep blood glucose in the normal range. Without enough insulin, extra glucose stays in your bloodstream rather than entering your cells.
Explanation:
Answer: Prediabetes usually occurs in people who already have some insulin resistance or whose beta cells in the pancreas aren't making enough insulin to keep blood glucose in the normal range. Without enough insulin, extra glucose stays in your bloodstream rather than entering your cells.
Explanation:
which of the following traits was the most important in enabling the first plants to move onto land? rings of cellulose synthesizing complexes alternation of generations apical meristems development of sporopollenin to prevent desiccation of the zygote peroxisome enzymes that minimize losses from photorespiration
Development of sporopollenin to prevent desiccation of the zygote
What is cellulose?
The polysaccharide cellulose, an organic molecule with the formula n, is made up of a linear chain of several hundred to many thousands of D-glucose units that are covalently bonded. Green plants, numerous types of algae, and oomycetes all have basic cell walls that contain cellulose as an essential structural element.
A molecule called cellulose is made up of hundreds, and occasionally even thousands, of carbon, hydrogen, and oxygen atoms. Cellulose, the main substance in plant cell walls, keeps plants stiff and upright.
Ceralacell is not a protein, no. Proteins are made up of a number of amino acids connected together by a peptide linkage, whereas cellulose is a polysaccharide made up of a linear chain of many linked D-glucose units.
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In eukaryotes, the components of citric acid cycling and the electron transport chain are located in the ____.
In eukaryotes, the components of citric acid cycling and the electron transport chain are located in the inner mitochondrial membrane.
The citric acid cycle and the electron transport chain are both parts of cellular respiration. Cellular respiration is the process by which the oxygen and glucose of food is used by a cell to produce energy in the form of ATP.
The process of cellular respiration takes place in the mitochondria. As cellular respiration and electron transport chain are parts of the cellular respiration process, hence these all take place in the mitochondria.
Cellular respiration is divided into three parts which is glycolysis, citric acid cycle and electron transport chain. When glycolysis occurs in the cytoplasm, the citric acid cycle as well as the electron transport chain occurs in mitochondria.
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human feet are everted so that their soles lie fully on the ground during ambulation. what muscle is developmentally unique to humans, inserts into the base of the fifth metatarsal, and assists in eversion (or pronation)?
The muscle is developmentally unique to humans, inserts into the base of the fifth metatarsal, and assists in eversion is fibularis tertius.
What is ambulation?The capacity to move around unaided while walking is known as ambulation. It is most frequently used to describe a patient's post-operative or physical therapy goals. A patient may need assistance before they are able to move around on their own in order to achieve their aim of ambulation.
Leg muscle called the fibularis tertius is located in its lateral compartment.
The fibularis longus muscle has the ability to plantar flex and evert the foot. Additionally, it supports the foot's longitudinal and transverse arches.
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imagine a population of beetles. white beetles are easier for birds to see and eat. gray beetles blend into their surroundings, so they are less visible to birds than white beetles. as a result, gray beetles are more likely to survive and reproduce, enabling the gene for gray coloration to be passed on to the next generation. this increases the frequency of genes for gray coloration in the population. which evolutionary process does this scenario describe?
The evolutionary process that is described below that causes the frequency of genes for gray coloration in the population to increase is natural selection.
Natural selection can be described as a process in which organisms that are better able to survive in an environment are able to pass on their characteristics to their offspring.
In the scenario above, as gray species were better able to survive in an environment hence their frequency increased over time. On the other hand, the white beetles were not able to survive better in this environment and hence their frequency decreased over time. Hence, through natural selection, the gray species of beetles were favored more than the white ones.
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identify the prey and predators of the spiders. grasshopper, spider, praying mantis, toad, garter snake, hognose snake, hawk.
Answer: prey of spider = grasshopper, sometimes spider, praying mantis,
predators of spider = toad, garter snake, hognose snake, hawk
Explanation:
which human activity is least likely to be a major threat to marine systems? group of answer choices habitat destruction from coastal development runoff of nonpoint source pollution overfishing sinking of ships to create artificial reefs invasive species introduced by humans
Human entertainment is least likely to pose the greatest threat to marine systems. Overfishing and sinking ships to create artificial coral reefs
Marine biology is the study of marine organisms, their behavior, and their interactions with the environment. Marine biologists discover marine life by studying chemistry, physics, and geological oceanography related to biological oceanography. Seafood or clam shells like our bodies; marine engines generated by the action of ocean currents or waves; with marine sediments.
Marine biologists don't have that kind of immersion now. Many roles are performed in the laboratory or on the job site, and fieldwork regularly includes research that may be performed on a boat or on the shore. You don't even need to understand how to swim! Of course, it is very interesting to have underwater next to the animal you are analyzing. Marine and aquatic biology is the study of marine and freshwater organisms, their behavior, and their interactions with the environment. Marine and aquatic biology is a sub-discipline of oceanography and biology.
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What is missing in an environment undergoing primary succession that would be present in an environment undergoing secondary succession?
The answer would be SOIL.
Primary succession refers to the ecological succession that occurs in a new land where life has not yet existed. It takes place after a lava flow cools and hardens into a new land, or when a glacier recedes and exposes new land. Because the land that results from these processes is totally new land, the soil must first be produced. On the other hand, secondary succession happens in a formerly inhabited area that was disturbed. The disturbance could be a fire, flood, or human action such as farming. Secondary succession is faster because the soil is already in place. In this case, the pioneer species are plants such as grasses, birch trees, and fireweed. Organic matter from the pioneer species improves the soil. This lets other plants move into the area.
1. How was this viral entry similar to what Dede Koswara experienced with HPV?
What does this teach us about the importance of using fresh gloves when
working with potentially sick patients?
Dede Koswara, nicknamed the Tree Man, teaches us about the importance of wearing new gloves when working with potentially HPV patients. because if you use the same glove you can transmit diseases from a patient like Dede to another healthy one.
What is the story of Dede Koswara?He accidentally cut his knee, where a small wart grew on his leg, which eventually spread all over his body.
The solution was when he found US dermatology expert Dr. Anthony Gaspari of the University of Marlyland, he concluded that Dede's disease was caused by the human papilloma virus (HPV).
What is HPV?The human papilloma virus (HPV) is responsible for a high number of infections that, in most cases, do not present symptoms and are spontaneously regressed. This is one of the most common sexually transmitted infections worldwide. The human papilloma virus encompasses more than 200 related viruses.
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primate males engage in competition for access to females. this reproductive strategy has led to larger body size and canine size in males (due to sexual selection). group of answer choices true false
The statement is true. Sexual selection is a form of natural selection in which characteristics that appeal most to the opposite sex spread more widely more common.
Which of the following variables might affect the size of a primate social group?
Most primates are highly social creatures that live in groups that range from small reproductive units to huge troops of hundreds of individuals. Food resource distribution, competition with other species, and the threat of predation are all key considerations of primate group size.
Among the various residence patterns, single-male groups have the most competition. Outside males who want to overthrow him and take over the group are constantly threatening the male in this group.
Therefore, primate males compete for access to females due to sexual selection.
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Which of the following is an input to the light dependent reaction?
O Oxygen
OPyruvic acid
Water
Glucose
Answer: A class hypothesized that water pollution affects the growth of ... These reactions take the light-dependent reactions and perform further chemical.
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Explanation:
JESUS SAVES EVERYONE JUST PRAY, HE IS ALWAYS LISTINING !
Which of the following is NOT a similarity between scanning electron microscopes and
transmission electron microscopes?
A. The medium is a vacuum.
B. The lenses are electrostatic.
C. The image is three-dimensional.
D. The magnification is electrical.
The image is three-dimensional which is produced by scanning electron microscopes this is not similarity between scanning electron microscopes and transmission electron microscopes
What is scanning electron microscopes and transmission electron microscopes ?Transmission electron microscopes (TEM) are types of microscopes that provide an image that is greatly enlarged while viewing specimens using an electron particle beam. TEMs have a 2 million-fold magnification capacity.
A focussed stream of electrons is projected and scanned over a surface by a scanning electron microscope (SEM) to produce a picture. The interaction between the beam's electrons and the sample results in a variety of signals that can be used to learn more about the surface's topography and composition.Compared to the SEM, the TEM has a resolution that is higher ( 0.2 nm), and HR-TEM can even achieve near-atomic resolution. Furthermore, TEM offers details on both elemental and complex structure (i.e., crystal structure, elemental information and morphology)Learn more about Microscopes here:
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true or false: sexual selection is a case of natural selection that describes evolution due not to variable survival rates, but rather due to variable reproductive rates stemming from characteristics that allow an individual to successfully attract a mate. group of answer choices
distinguished between two types of sexual selection: intrasexual selection, in which members of the same sex (often males) struggle for access to mates, and intersexual selections.
What is sexual selection?In the process of sexual selection, members of one biological sex choose partners from the other sex and compete with one another for access to partners from the other sex. The sexual selection idea proposes that animals with distinctive physical characteristics, such as dramatic colour, enhanced size, or eye-catching adornments, may have an easier time finding mates.He distinguished between two types of sexual selection: intrasexual selection, in which members of the same sex (often males) struggle for access to mates, and intersexual selection, in which members of one sex (frequently females) favor members of the opposite sex.Members of one biological sex choose partners from the other sex to mate with (intersexual selection) and compete with one another for access to partners from the other sex through sexual selection (intrasexual selection).To learn more about sexual selection refer to:
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1. what happens if the number of cod decreases?
2. What would happen if the phytoplankton were removed?
3.
Aquatic ecology would collapse without phytoplankton. Carbon levels would rise if plankton disappeared, causing climate change. Phyotplanktons may generate dangerous algal blooms if cod numbers drop (HABs).
What is phytoplankton?In the same way as terrestrial plants possess chlorophyll and are dependent on sunlight for their survival and growth, phytoplankton, which are sometimes referred to as microalgae, are found in aquatic environments. The vast majority of phytoplankton are buoyant, which allows them to float in the upper layers of the ocean where the sunlight can reach them.
When there is an excessive amount of nutrients available, phytoplankton have the potential to grow out of control and produce toxic algal blooms (HABs). These blooms have the potential to produce exceedingly poisonous chemicals, which can have a negative impact not just on fish and shellfish, but also on animals, birds, and even humans.
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Clay is a telecommunications technician. What situation would Clay be called in to help with?
A non-profit conservation agency wants to stop a project that would endanger turtle nesting.
A cable company needs to lay new fiber optic cable to reach its customers across a large lake.
A soft drink manufacturer needs to deliver products to another country.
A small soybean farm is interested in buying more machinery.
PLEASE HELP 30 QUESTIONS
The situation in which Clay would be called in to help with as a telecommunications technician is that a cable company needs to lay new fiber optic cable to reach its customers across a large lake and is denoted as option B.
Who is a Telecommunications technician?This is referred to as a trained professional who specializes in the installing, and operating of telecommunications network circuits and equipment such as masts etc.
The appropriate job in this scenario will be that of a cable company which needs to lay new fiber optic cable to reach its customers across a large lake.
The optic cable is an important equipment which helps in the transmission of data as pulses of light and ensures that it occurs at a very fast speed which is therefore the reason why option B was chosen as the correct choice.
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Please answer fast!
worth 100 points
Answer:
self feeder; E from sun or chemicals - autotrophs
has a nucleus & membrane-bound organelles - eukaryote (5)
the smallest taxonomic division - species (4)
no nucleus or membrane bound organelles - prokaryote (6)
one organism living inside another, both benefit - mutualism
two term - binomial (1)
Explanation: