Answer:
Compact Bone and Ligaments
Explanation:
Compact bones is basically a dense bone filled with organic ground substances and inorganic salts leaving only small places for bone cells.
What stage of mitosis is this and describe it
Explanation:
We need a picture please
what statements correctly describe the processing of the pre-mrna that must take place to generate a mature mrna?'
The statements that correctly describe the processing of the pre-mRNA that must take place to generate a mature mRNA are:
A. Noncoding sequences called introns are spliced out by molecular complexes called spliceosomes.
C. A cap consisting of a modified guanine nucleotide is added to the 5' end of the pre-mRNA.
D. A poly-A tail (50-250 adenine nucleotides) is added to the 3' end of the pre-mRNA.
mRNA is the messenger RNA that encodes the information of the DNA. mRNA is formed by the process of transcription by the enzyme RNA Polymerase II. It carries the information to form the protein.
The question is incomplete, the complete question is:
What statements correctly describe the processing of the pre-mRNA that must take place to generate a mature mRNA ?
A. Noncoding sequences called introns are spliced out by molecular complexes called spliceosomes.
B. A translation stop codon is added at the 3' end of the pre-mRNA.
C. A cap consisting of a modified guanine nucleotide is added to the 5' end of the pre-mRNA.
D. A poly-A tail (50-250 adenine nucleotides) is added to the 3' end of the pre-mRNA.
E. Coding sequences called exons are spliced out by ribosomes.
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During exponential growth, a population always a. has a constant, instantaneous per capita growth rate. b. quickly reaches its carrying capacity. c. cycles through time. d. loses some individuals to emigration.
According to the given statement Has a constant, instantaneous per capita growth rate.
The correct option is A.
Why is growth rate important?The percentage changes in a particular variable over a predetermined period of time are known as growth rates. Depending on whether the magnitude of the variable is growing or shrinking over time, growth rates can either be positive or negative.
What is an example of a growth rate?Growth rates accumulate with time; if a variable's growth rate is constant, the change in the variable will only get bigger with time. Assume, for instance, that GDP will be 20.0 in 2020 and will increase by 10% annually. The GDP is 22.0 in 2021 (an rise of 2.0), but it is 24.2 in 2022. (an increase of 2.2).
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identify all of the following that are functions of proteins. multiple select question. support and structure energy storage transport molecules antibodies for defense genetic material enzymes
Functions of proteins are support and structure transport molecules.
What is protein ?
A protein is a naturally occurring, extremely complex molecule composed of amino acid residues connected by peptide bonds. Proteins can be present in all living things and contain a wide range of vital biological components such as enzymes, hormones, and antibodies.
What are the function of proteins?Protein serves numerous functions in your body. It aids in the repair and growth of tissues, allows metabolic reactions to occur, and organizes biological operations. Proteins not only provide a structural basis for your body, but they also maintain optimum pH and fluid balance.
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Lateralization occurs in some areas of the cerebral cortex, which means that the hemispheres have _____ functions.
Lateralization occurs in some areas of the cerebral cortex, which means that the hemispheres have different functions.
Cerebral cortex is Composed of grey matter.Contains billions of neurons, but no sensory or motor neurons, only all interneurons. Cerebral Cortex is Site of perception, earning, memory, and communication.Place where voluntary movements initiated.The 3 functional areas of the cerebral cortex Motor Areas Sensory Areas Association AreasMotor Areas Controls voluntary movement. Lie in the posterior part of the front lobes.Primary motor cortex controls voluntary muscles in body areas, especially those having the most precise motor control. (face, tongue, hands). If the left hemisphere is damaged of the cortex then right side of the body will be paralyzedTo know more about Cerebral Cortex visit : https://brainly.com/question/1191477
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The difference in charge between the inside and the outside of the nerve fiber when the nerve is at rest is ____ mv.
The difference in charge between the inside and the outside of the nerve fiber when the nerve is at rest is -70 mv.
A neuron's inner is around 70 millivolts more negatively charged than its exterior when the cell is at rest (70 mV; note that this value varies depending on the species and type of neuron). This voltage, which is caused by fluctuations in the quantities of ions inside and outside the cell, is known as the resting membrane potential. If the membrane were equally permeable to all ions, each type of ion would pass through it, and the system would eventually reach equilibrium. Because ions cannot simply cross the membrane at will, there are different concentrations of some ions inside and outside the cell.Learn more about the resting membrane potential with the help of the given link:
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Which component is an example of a biotic factor found in an attic ecosystem
A. Ice
B. Foxes
C. Snow
D. Rocks
In bpmn, organizations are modeled as pools and departments within organizations are modeled as?
In BPMN, organizations are modeled as pools and departments within organizations are modeled as swim lanes.
Process flow diagrams, often known as flowcharts, use a swim lane to visually demarcate task sharing and responsibilities for business process sub-processes. Swim lanes can be set up vertically or horizontally. In contrast to other flowcharts, the swim lane flowchart groups operations and decisions visually into lanes. Each person, group, or subprocess has its own lane in the chart, which is divided into lanes by parallel lines.Building simple-to-read business process model flowcharts that can be shared across enterprises and industries requires the usage of a business process model and notation diagram, or BPMN diagram. Flow objects, linking objects, swimlanes, and artefacts are the four basic categories under which BPMN diagram symbols fall.To learn more about swim lanes.
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When one or both copies of a gene are the ______ allele, then this allele's form of the trait will be exhibited
When one or both copies of a gene are the dominant allele, then this allele's form of the trait will be exhibited.
In the field of genetics, we can simply describe alleles as the variant forms of a single gene.
It is due to the expression of an allele that certain characteristics are observed in an organism.
For a trait to express itself in the phenotype, the allele for the trait either needs to be homozygous dominant or heterozygous dominant.
An allele that is able to mask the effect of the other allele of the same type is referred to as the dominant allele. An allele that gets masked by the other allele is referred to as the recessive allele.
For a trait to express itself, the allele needs to be dominant i.e either one copy of the dominant allele should be present or both the alleles should be dominant. In case both the alleles are recessive, then the recessive trait will be expressed.
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a thermomet is used to check chicken being cooked on gill what must food handler do before using same theremoms to check food on serving line
a thermomet is used to check chicken being cooked on gill, a food handler must do Wash, rinse, sanitize, and air-dry thermometers before using same theremoms to check food on serving line.
thses ethe some instruction food handler can follow -
Wash, rinse, sanitize, and air-dry thermometers before and after using them.Calibrate them before each shift to. ensure accuracy.Make sure thermometers used to measure the temperature of food are accurate to. ...Only use glass thermometers if they are enclosed in a shatterproof casing.Always put the thermometer stem or probe into the thickest part of the food. A bimetallic stemmed thermometer should be put into food from the tip to the end of the sensing area. Before you record the temperature, wait for the thermometer reading to steady.to know more about bimetallic stemmed thermometer click here
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All viruses are composed of a ____________ made of ____________ which surrounds the inner core containing ____________ or rna.
All viruses are composed of a capsid made of proteins that surrounds the inner core containing enveloped or na-ked RNA (genetic material).
What is the viral capsid?The viral capsid is a structure that surrounds the viruses and help to them in order to infect host cells, which is composed of different type of proteins.
In conclusion, all viruses are composed of a capsid made of proteins that surrounds the inner core containing enveloped or na-ked RNA (genetic material).
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Electrolytes, (to identify a few: na , k , mg cl-), account for approximately ________ of the solutes in the body.
Electrolytes are found in the body are calcium , potassium,phosphate, chloride , Magnesium and sodium.
What is the most common electrolyte imbalance?Hyponatremia is the most common form of electrolyte Disorder in the emergency room . The symptoms are unspecific and include nausea , dizziness and often falls. Typical symptoms of severe hypernatremia are vomiting, cerebral seizures ,somnolence and even coma.
Sodium , calcium , potassium,chloride ,phosphate and magnesium are all electrolyte. The levels of in your body can become too low or too high .
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In a short essay (100-150 words), discuss how different types of energy investment by females contribute to the reproductive success of a frog, a chicken, and a human.
Frogs lay eggs and incubate them themselves. Once the egg is formed there is no interaction between the frog and its offspring.
Instead, they produce a large number of eggs, resulting in high reproductive success. Females spend less energy on eggs than humans or chickens.
Chickens lay eggs through sexual reproduction. When it lays an egg, it hatches the egg. This takes from 21 days to 1 month. Therefore, the energy investment for hatching eggs is higher for chickens than for frogs. Chickens have a lower reproductive success rate than frogs because they lay less eggs than frogs.
Humans do not lay eggs. They go through the embryonic stage to form a zygote that matures offspring. Their energy investment phase is longer than others, as they take nine months to feed a fertilized egg.
Reproductive success is low because only one fertilized egg is produced at a time
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The percentage of our total gene pool that determines our sex (x and y chromosomes) is?
The percentage of our total gene pool that determines our sex (X and Y chromosomes) is 0.2%.
In terms of numbers, the X chromosome has roughly 800-900800-900800, minus 900 protein-coding genes with a wide range of functions, whereas the Y chromosome has about 60-7060-7060, minus 70 protein-coding genes, of which about half are exclusively active in the testes.The chromosome that the male father provides determines the biological sex (male or female) of the child. The X or Y chromosome can be contributed by the male, who has XY sex chromosomes, whereas the X chromosome must be contributed by the female, who has XX sex chromosomes.Numerous processes, such as mutations, natural selection, and genetic drift, can cause this. As a result, the population's gene pool is modified to better suit the requirements of its particular habitat.To learn more about chromosome.
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Which is most likely the reason zebras and horses are considered separate species?
They cannot breed.
Their offspring cannot breed.
They look different from each other.
They are found in different habitats.
Species are the level of taxonomical classification. Zebras and horses are closely related species. They are considered as separate species because they cannot breed.
Thus, the correct option is A.
What is Species?Species is a group of organisms that can interbreed to produce fertile off-springs. They cannot breed under natural conditions.
Zebras and horses are the two different species which belong to the same horse family Equidae. Zebras are considered as wild horse as they belong to same family.
Under natural conditions these two species cannot breed. If Zebras and horses interbreed, the offspring produced from this will be sterile. The offspring cannot breed.
Therefore, Zebras and horses cannot breed under natural conditions. Hence, option A is correct.
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How are otoliths adaptive for burrowing mammals, such as the star-nosed mole?
Because light cues are lacking in habitats like the star-nosed mole's tunnel habitat, otoliths sense the animal's position with regard to gravity.
Why are they known as star-nosed moles?In the northern regions of North America, you can find the little star-nosed mole in low, wet environments. The only surviving member of the Cordyline tribe, it has more than 25,000 tiny sensory receptors in touch organs.
Why do ears have otoliths?The inner ear's otoliths (ear-stones), which are tiny organs, detect linear acceleration and gravity.
What purpose do otoliths serve?The otolith organs detect linear acceleration brought on by the start of a straight line of motion as well as gravity. People and animals with damaged or absent otolith organs have a worse sensation of motion and orientation to gravity.
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Explain why destroying the remaining tropical forests might harm humans and lead to a mass extinction.
The ____ suture is a single suture line that articulates the left and right sides of the palate.
The median palatine suture is a single suture line that articulates the left and right sides of the palate, which is found behind the incisive canal between right and left palatine bones in the mouth.
What is the median palatine suture?The median palatine suture can be defined as a specialized closure suture located in the cranial bones which has as function to allow the growth of the maxilla.
In conclusion, the median palatine suture is a single suture line that articulates the left and right sides of the palate, which is found behind the incisive canal between right and left palatine bones in the mouth.
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how many elk would be found in a 2.5-acre area
For two hunters or more, Messerschmidt says the ideal minimum size land for rifle hunting elk is about 50 acres.
What do elk do?Males have large horns, which weigh up to 35 kg. These horns are used, for example, in competition for the female. Moose are solitary, good swimmers and can run up to 56 km/h. These animals are most active at sunrise and sunset.
Where does the elk live?Several subspecies of moose are native to Norway, Sweden, Finland, Russia, Estonia, Latvia, Lithuania, Poland, the US, and Canada. They live in deciduous and boreal forests, with a diet consisting mainly of tree buds and woody plants.
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In order to reproduce sexually, what do animals need to compete for?
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Does the distribution of Ca²⁺ in an egg correlate with formation of the fertilization envelope?
Scientists proposed that variations in the distribution of Ca2+ ions in sea urchin eggs play a role in the formation of the fertilization envelope in light of what was known about the fertilization envelope, a protective layer that forms around the egg when a sperm fuses with it.
The endoplasmic reticulum (ER) of sea urchin eggs has a substantially greater Ca2+ ion content than the cytoplasm, as is the case in most eukaryotic cells. The researchers inserted a Ca2+-specific fluorescent dye into the cytoplasm of unfertilized eggs in order to observe how the cytoplasmic Ca2+ concentration varies in the egg during fertilization. They used a fluorescent microscope to view the eggs after they had been fertilized.
Scientists discovered that the creation of the fertilization envelope, which prevents the fusing of additional sperm with the egg, coincides with the sperm-induced increase in cytoplasmic Ca2+concentration during fertilization in sea urchins.
The cortical reaction is brought on by an increase in the amount of Ca2+ in the cytoplasm of the egg.
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What is the total damage imposed as a result of producing the efficient level of fertilizer?
Crop yields must be increased while spending less, and it's important to comprehend the aspects that affect how effective fertilizers are overall.
What is negative impact of fertilizers?Negative effects on plant and animal life, including people, can result from improper management of nutrients.
Other contaminants linked to animal manures and commercial fertilizers.
Algal blooms that cause surface waters to lose oxygen, pathogens, and nitrates in drinking water, and the release of smells and gases into the atmosphere are a few of these effects.
Therefore, the total damage imposed as a result of producing the efficient level of fertilizer.
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when you eat a large meal and your body absorbs a lot of glucose and that makes its way to the interstitial fluid before going into the cell. 100% of the glucose should be absorbed into the cell from the interstitial fluid. why does nearly all of the glucose enter the cell, rather than only half of it?
Since the cell modifies it, there's more glucose outside the cell than within.
Cell- The research of structure and function of cells is known as cell biology, and it is based on the idea that a cell is the basic building block of all life. A thorough grasp of the organisms and tissues that cells make up is made possible by concentrating on the cell.
Tissue- A biologic organization level between cells and an entire organ is called a tissue. A tissue is a group of comparable cells from the same origin, along with their extracellular matrix, that work together to perform a single function. Then, various tissues are functionally grouped together to form organs.
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oxygen choose one: a. can be used as a terminal electron acceptor by microbes capable of cellular respiration, thereby generating more energy than other pathways. b. is required by all microbes except for some types of extremophiles. c. is relatively chemically inert. d. is a needed substrate for all metabolism.
Oxygen (a) can be used as a terminal electron acceptor by microbes capable of cellular respiration, thereby generating more energy than other pathways.
Electron acceptors play a crucial role in the process of synthesis of energy. These receive electron from one substrate or acceptor and transfer it to another. With this transfer of electrons is coupled the transfer of protons that generates a proton gradient across the membrane, thereby helping in the synthesis of energy.
Cellular respiration is the process of breakdown of food to generate energy in the form of ATP. This process occurs in the presence of oxygen.
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How does the activity of tropomyosin and troponin in muscle contraction compare with the activity of a competitive inhibitor in enzyme action? (See Figure 8.18b. )
The substrate for the enzyme shares the same binding site as a competitive inhibitor. The myosin-binding sites on actin, however, are not directly contacted by the troponin and tropomyosin complex, which conceals them instead.
When muscles contract, what role do troponin and tropomyosin play?Two proteins, troponin and tropomyosin, are found on the delicate filaments of muscle cells and aid in muscular contraction.They serve opposing purposes, nevertheless. Tropomyosin prevents muscular contraction while troponin stimulates it.What function do troponin and tropomyosin serve?In vertebrate striated muscle, troponin-tropomyosin plays a role in both the transduction of calcium's effect on contractile protein activation and the inhibition of actin and myosin interaction in the absence of calcium.To learn more about muscle contraction visit:
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The diving bell spider (Argyroneta aquatica) stores air underwater in a net of silk. Explain why this adaptation could be more advantageous than having gills, taking into account differences in gas exchange media and gas exchange organs among animals.
The diving bell spider's adaption of a silk net may be preferable to gills because it will enable it to stay submerged for a longer period of time.
What is the purpose of a hydrogel?Contact lenses, hygiene products, and wound dressings are all made with hydrogels. Hydrogels are also used commercially for tissue engineering and medication delivery. More advancements in tissue engineering and drug delivery are anticipated. Hydrogels' continued commercialisation is being constrained by their high production costs.
What benefits do hydrogels give?The benefits of hydrogels are their adaptability, versatility, stimuli-responsiveness, and soft structure. Its source, preparation, ionic charge, responsiveness, crosslinking, and physical characteristics are used to categorize it. Hydrogels are employed in a number of industries, including agriculture, the food industry, biosensors, and biomedicine.
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which will increase the heart rate? group of answer choices norepinephrine stimulation of the sa node by sympathetic nerves acetylcholine stimulation of the sa node by sympathetic nerves acetylcholine stimulation of the sa node by parasympathetic nerves norepinephrine stimulation of the sa node by parasympathetic nerves
The factor that will increase the heart rate is norepinephrine stimulation of the SA node by parasympathetic nerves. So the correct option is D.
What is heart rate?The amount of times your heart beats in a minute is known as your heart rate. Your body adjusts your heart rate naturally to fit what you're doing or what's going on around you. Because of this, your heart rate increases at times of activity, excitement, or fear and decreases during times of rest, serenity, or comfort.
Your heart rate is a crucial sign of your general health. A high or sluggish heart rate may indicate a cardiac condition or other health issues. Having the capacity to feel your heartbeat all around your body may also help doctors identify medical issues.
Therefore, the correct option is D.
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50 points look at screenshot
Carbohydrate: starches and sugars, glucose and sucrose
lipids: can be utilized for energy if sugars are not available
protiens: DNA or RNA, antibodies
nucleic acid: forms hydrophobic part of membrane
which of the following statements regarding darwin's theory of adaptation by natural selection are accurate?
The assertions made in relation to Darwin's idea of adaptation by natural selection are true in terms of optimal variants for environmental conditions.
Darwin's theory of evolution has his two main aspects: natural selection and adaptation. Cooperate in the inheritance of traits within a population.
Natural selection occurs through interactions between the environment and the variability among individuals that make up the population. Basically, both natural selection and adaptation are integral parts of evolution, and even in a hostile environment, nature chooses the best, the best adapts to nature, and the adaptation is passed on to offspring. Inherited.
Change is the fundamental mechanism that supports adaptation to the environment. Superior/intrinsic adaptive mutations are passed on to the next generation and allow us to survive in an ever-changing environment. Organisms that adapt and develop new beneficial traits survive only a long evolutionary process.
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The substances in a chemical reaction that are combined or separated to form new substances are the _______.
A.
chemical equations
B.
products
C.
reactants
D.
coefficients
Answer:
products...............