Answer:
behavior is an action that can be observed and measured
Answer:
Explanation:
D
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The type of selection that is demonstrated on the graph is C. stabilizing selection.
What is stabilizing selection ?Stabilizing selection, a natural form of selection, prioritizes the advantages associated with the survival and reproduction of individuals bearing average or intermediate characteristics within a collective. Conversely, it functions to the detriment of those carrying anomalous or extremely distinctive traits.
Such individuals face detrimental consequences because their exceptional physical attributes could lead to an absence in skillsets essential for adapting to varying environmental conditions, rendering them ineffectual competitors for resources as well.
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pls help asap! due tonight! 9th grade bio
Regulatory proteins are molecules that form a complex connection with certain segments of the DNA, resultantly managing gene expression.
How to explain the termsAn operon is a collection of transcribed genes governed together and viewed jointly. It encompasses an operator, a promotor, and the transcribed genetics.
The promotor is an assembled series of DNA located upstream to the gene nucleotide outlines and acts as the facultative hub for the RNA Polymerase enzyme which initiates the transcription process. The operator is another sequence of DNA found upstream of the promotor and acts as a toggle switch allowing either activation or deactivation of the gene.
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Question #6
When building a phylogenetic tree, systematists look at which of the following sources of information? Select all that apply.
The type of information that is looked at by systematists is B. Genetic data.
What happens when building a phylogenetic tree?Systematists construct a branching diagram to depict the evolutionary history of organisms by using genetic data gathered from them when developing a phylogenetic tree.
This process involves analyzing DNA or protein sequences from various living organisms in order to identify similarities and differences that can be employed to group them into related lineages.
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Options are:
A. Fossil records
B. Genetic data
C. Behavioral observations
D. Weather patterns
What water molecule forms with hydrogen
Cohesion: Hydrogen Bonds Make Water Sticky
In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.
answer: adjacent water molecules
Which of the following statements is NOT true? A. Cutting down trees affects the water cycle.
B. Ocean levels rise in an ice age.
C. Oceans hold most of the world's water. D. Clouds are formed because of cold temperatures.
Answer:
B. Ocean levels rise in an ice age.
Explanation:
During cold-climate intervals, known as glacial epochs or ice ages, sea level falls because of a shift in the global hydrologic cycle; water is evaporated from the oceans and stored on the continents as large ice sheets and expanded ice caps, ice fields, and mountain glaciers.
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Adolescence and the Teenage Crush
1.PART A: Which of the following best describes a central idea of the passage?
A.
There is a greater pressure on teenagers to have crushes than on any other age group.
B.Puberty and developing identities are the main reasons teenagers are more prone to have crushes.
C.
Crushes are incidental, or insignificant, to ordinary adolescent development.
D
.Adolescent crushes are matured expressions of love; it is a common myth that they are not.
2.PART B: Which of the following quotes best supports the answer to Part A?
A.
"After all, it is an early approximation of love. While it has lasted it is seriously held, so it should be seriously treated." (Paragraph 2)
B.
"There is a great outbreak of romantic crushes and gossip about them ("Guess who likes who?") in middle school." (Paragraph 4)
C.
"…early adolescence and the separation from childhood has caused young people to want to act more grown up, and sexual maturity from puberty has motivated them to act in more young manly and young womanly ways." (Paragraph 4)
D.
"Most romantic crushes don't last very long because once the object of the crush becomes better known, magic of the other person soon wear off and the ideal falls away." (Paragraph 10)
3.How does Dr. Pickhardt describe and/or differentiate between the three types of crushes? Cite evidence in your answer.
4.How does the concept of "idealization" contribute to the author's key argument regarding crushes?
A.
The author argues that most crushes are idealized and therefore cannot be considered real love.
B.
The author argues that crushes, romantic or identity, involves the projection of idealized traits that a person values and desires onto another person (i.e. the crush).
C.
Idealized celebrities and celebrity crushes can give teenagers an unrealistic understanding of individuals; this makes it more difficult for them to accept flaws.
D.
Idealized relationships in popular media encourage adolescents and teenagers to seek out romance, causing them to have more frequent crushes.
5.Which of the following statements best describes the author's point of view on how parents should react to their children's crushes?
A.
Parents should discourage crushes, especially celebrity crushes and risky identity crushes.
B.
Parents should encourage crushes, respect the child's boundaries, and not monitor in any way the adolescent.
C.
Parents should inform their children early on that crushes aren't often serious—even if it feels like it—so that the adolescent will be able to face possible rejection more easily.
D.
Parents should support their children's feelings, but be aware of the possible risks or fallout that come with crushes.
Differentiate between: 1) Pesticides and weedicides
Answer:
Pesticides:
The poisonous chemicals that are used to destroy pests are known as pesticides.It's often used to get rid of or manage a wide range of agricultural pests that can harm crops and livestock while also lowering farm output.Pesticides are the chemicals which are used to kill the pests that damages crops. They kill the eggs and larvae of the insects.Weedicides:
The unwanted plants that usually grow along with the desired crop are known as weeds. The chemicals used to control weeds are known as weedicides.Examples of weedicides are dalapon, 2,4-D, metolachlor etc. Weedicides are the chemicals that are used to check the growth of weeds in the field along with the main crop. These chemicals do not cause any damage to the crop.Explanation:
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Directions: In the space below, draw and label the Trichoplax adhaerens using the directions in the slideshow that appears on the page where your accessed this worksheet. Your labeling should include the dorsal surface, cover cells, the ventral surface, cylinder cells, gland cells, fiber cells, and cilia.
Trichoplax adhaerens is a small, flattened, and ciliated animal belonging to Placozoa phylum. Its body is a few millimeters in size and has a simple, two-layered structure, with an outer layer of cover cells and an inner layer of cylinder cells.
Thus, the different structures of Trichoplax adhaerens include dorsal surface which is the upper surface facing upward. Then, cover cells are present which is the outermost layer of cells that cover the animal body.
Ventral surface in Trichoplax adhaerens is the lower surface of the animal facing downward. Cylinder cells are the inner layer of cells lining the digestive cavity of the animal.
Gland cells are the cells that secrete enzymes for digestion in Trichoplax adhaerens. Fiber cells help to maintain the shape of the animal and cilia are hair-like structures covering the surface of the animal.
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B
4000
Exam Lesson Name: Plant and Animal Systems, and Behavior
Exam number: 700042RR
Exam Guidelines
Exam Instructions
Question 18 of 20:
Select the best answer for the question
18. The first known bird fossils date to which era of time?
A. Triassic
B. Jurassic
O C. Permian
D. Cambrian
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How is cytokinesis in plants and animal cells in mitosis different? How is cytokinesis in sperm and egg cells in meiosis different?
1st question;Plant cytokinesis is centrifugal in nature, the cytoplasmic division starts at the center of the cell and moves towards the cell wall. Animal cytokinesis is centripetal in nature, the cytoplasmic division starts at the edges of the cell at the plasma membrane and moves towards the center.
2nd; Gametogenesis differs between the sexes. In the male, the production of mature sperm cells, or spermatogenesis, results in four haploid gametes, whereas, in the female, the production of a mature egg cell, oogenesis, results in just one mature gamete.
Identify and label the following stages of meiosis:
What are the two phases of Meiosis and their sub-phases
In sexually reproducing organisms, meiosis is a kind of cell division that results in the production of gametes, or sex cells. Meiosis I and Meiosis II make up the two phases of the process. The reduction division is another name for meiosis I, which is the first stage of meiosis.
Each chromosome is replicated and the number of chromosomes is halved during this phase. Following replication, the chromosomes couple off and cross over to exchange genetic material. Four daughter cells are created as a result of this process, each of which has half as many chromosomes as the parent cell.
The equational division is another name for meiosis II, the second stage of meiosis. The replicated chromosomes separate during this phase, and the cell divides.
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All of the following are dam effects to land upstream EXCEPT O Increased temperature Rapid water flow O land becomes flooded O Increase sediments
Dam affects land upstream expect land becomes flooded. Dams are constructed over the river's function. The dams help in the generation of electricity which is known as hydrothermal energy. They help in trapping the sediments, and rock bed on the riverside the place where fish spawn.
The feature of the habitat which affects the rivers are trapped such as logs, gravel, and other food option. There are negative effects of the building of dams are displacement of the people as the area gets flooded and maintenance and creation cost are high and complex.
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What type of mammal would have baleen?
-dolphin
-whale
-manatee
Answer:plates that hang from the whale's upper jaw, forming a series of comb-likestructures that are used to filter small prey, such as krill and small fish, from thewhales, blue whales, and gray whales, among others. It consists of keratinouswater. Dolphins and manatees do not have baleen, and they have differentfeeding adaptations. Dolphins are carnivores and have sharp teeth forhunting, while manatees are herbivores and have flat, flexible lips for grazing on aquatic vegetation.
copernicus ideas about the solar system are considered to be the starting point of modern
Copernicus ideas about the solar system are considered to be the starting point of modern astronomy.
The principles of the solar system proposed by Copernicus are regarded as the foundation of contemporary astronomy. The geocentric model, which maintained that Earth was the centre of the universe and that the planets, sun, and stars all circled around it, was the most widely accepted theory of the solar system until Copernicus. This theory was refuted by Copernicus, who put forth the heliocentric theory, which placed the sun at the centre of the solar system and had the planets rotate around it. The groundwork for upcoming astronomical discoveries and hypotheses was set by this, which marked a significant shift in our knowledge of the cosmos.
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Red Bone Marrow is
A. formed by tissue cells
B. capable of producing blood cells.
C. found only in children
D. a source of pathogens
E. found in the center of all adult bones
Answer: B. capable of producing blood cells.
Explanation: Red bone marrow is the anatomical structure that safeguards hematopoietic stem cells, which are crucial progenitors of a diverse array of blood cells comprising erythrocytes, leukocytes, and thrombocytes. Spongy bone tissue is discernible within relatively large bones, such as the pelvis, sternum, and skull, in both adult and pediatric populations. Red bone marrow is known to be abundant in the skeletal system of children; notwithstanding, it remains present in the bones of adults, albeit with a tendency to be displaced by yellow bone marrow as we progress in age.
what are the elements of composing 96% of living matter
Answer:
carbon, oxygen, hydrogen, nitrogen
Explanation:
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What does the moon not have on its own?
O rotational period
O gravity
O revolution period
Olight
Help pls: As the human population has increased over time, wilderness lands have decreased.
What are the two main reasons that wilderness land has decreased?
Select the two correct answers.
• Pollution has harmed wilderness areas.
• Towns and cities have grown and expanded.
• Human activities have caused the climate to change.
• More land is needed for farming and ranching.
• People no longer need or want wilderness areas.
Answer:
• Pollution has harmed wilderness areas.
• More land is needed for farming and ranching.
Explanation:
Select all the correct answers.
A biologist came across a fungus on a beach. Upon further study, he found out that the fungus could feed on dead matter. It can also feed on living matter, but it harms the organisms in the process. In which two groups of fungi could the biologist place the fungus?
saprophytic fungi
sac fungi
parasitic fungi
mutualistic fungi
Which of these is an example of variation? Identical twins having identical DNA.
Two potato plants that are clones of each other.
Two Guinea pigs having different coloured fur.
Two human beings having similar body parts.
A. Charles Darwin became a naturalist, studying the plants and animals around him. B. Charles Darwin observed that similar birds had different markings on the different Galapagos islands. C. Charles Darwin developed a theory based on his observations and interpretations about how natural selection occurred. - Charles Darwin published a book about the theory of evolution that was read by many people who were not scientists
The correct chronological order of these events is: A -> B -> C -> D.
A. Charles Darwin became a naturalist, studying the plants and animals around him.
B. Charles Darwin observed that similar birds had different markings on the different Galapagos islands.
C. Charles Darwin developed a theory based on his observations and interpretations about how natural selection occurred.
D. Charles Darwin published a book about the theory of evolution that was read by many people who were not scientists.
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What's developed as a result of the electron transport chain?
Answer:
The electron transport chain (ETC) is a series of protein complexes located in the inner membrane of the mitochondria that transfer electrons from electron donors to electron acceptors via redox reactions. As a result of the ETC, a proton gradient is formed across the inner mitochondrial membrane, which drives ATP synthesis by the enzyme ATP synthase. The ATP produced through oxidative phosphorylation is the primary energy source for most cellular processes.
Explanation:
The electron transport chain (ETC) is the final step of aerobic cellular respiration and is where the majority of ATP is generated. As electrons move through the ETC, they release energy that is used to pump hydrogen ions across the inner mitochondrial membrane, creating an electrochemical gradient. This gradient powers ATP synthase, which generates ATP by adding a phosphate group to ADP. In summary, the electron transport chain results in the production of ATP, which is the primary source of energy for cellular processes.
By 2050, the single major source of electricity is projected to be
natural gas.
nuclear.
wind power.
solar power.
Answer:
solar power.
Explanation:
Solar power is projected to be the single major source of electricity by 2050 due to a combination of factors. First, solar technology is rapidly improving, becoming more efficient and affordable. This has made solar power increasingly competitive with traditional fossil fuels, even in regions with less sun exposure.
Lancelets Are small marine animals. They spend most of their time buried in the sand with their mouth sticking out to filter food from the ocean water. These animals have a body feature called a nerve cord along the back as well as a notochord Guild muscle blocks and a tail. However, they do not have a 
These animals have a body feature called a nerve cord along the back as well as a notochord Guild muscle blocks and a tail. However, they do not have a chordates.
The lancelets (often known as amphioxus and placed in a group known as cephalochordates, of which the best known are in the genus Branchiostoma) are small marine chordates that are most closely related to the vertebrates.
The dorsal nerve cord and chordates has pairs of nerves that connect to the organism's muscles. In some organisms, the dorsal nerve cord expands into a brain at the top.
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Which of these is an advantage of solar power?
It is versatile. There are many different ways to trap heat or produce electricity from solar energy.
It is the most inexpensive way to generate electricity on a large scale.
The price has dropped dramatically in recent years and it is now very affordable for the average homeowner.
It is a form of energy that can be trapped 24 hours a day, year round.
The advantage of solar power is it is the most inexpensive way to generate electricity on a large scale.
The sun's energy is converted into electricity by solar power. Electricity and heat are the two forms of sun-generated energy that we can use. Both are created using sun powered chargers, which range in size from private roofs to 'sun based homesteads.
Solar power heating, passive solar design for space heating and cooling, and solar photovoltaics for electricity generation are the most widely used solar technologies for homes and businesses.
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what society can do for bullied people like khalil
What needs to occur for a male to be color blind?
Responses
He needs to inherit a recessive allele that causes color blindness from both his parents.
He needs to inherit a recessive allele that causes color blindness from either his mother or father.
He needs to inherit a recessive allele that causes color blindness from his father.
He needs to inherit a recessive allele that causes color blindness from his mother.
Answer:
Explanation:The sole X chromosome that males inherit from their mother is. They will suffer red-green color blindness if that X chromosome carries the red-green color blindness gene rather than a normal X chromosome. Two X chromosomes, one from the mother and one from the father, are present in females.
Why should we consider using a variety of energy sources to meet our energy needs?
Diversifying the types of renewable energy used will allow systems to better meet the needs of local communities.
Each energy source provides a different kind of energy – some generate electricity while others provided liquid fuels for vehicles.
There is disagreement over which single source to go with because different factions back different energy sources.
Starting with windmills then switching to solar and geothermal if windmills are not cost effective will save money in the long term.
By using a variety of energy sources to meet our energy needs as each energy source provides a different kind of energy – some generate electricity while others provided liquid fuels for vehicles.
The amount of food energy required to maintain body size, body composition, and a level of necessary and desired physical activity consistent with long-term good health is known as energy needs.
Calculating energy needs can be done in a variety of ways. Take the athlete's weight in pounds and multiply it by ten to get a rough average of their basal needs, or needs without exercise.
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In the food chain below each organism will eat ten of the organism below them in the food chain. If there is 1 gram of mercury found in the plant plankton, how much mercury would a person ingest from eating one tuna? (for reference 1 gram = 0.0022)
The amount of mercury in each organism is going to be ten times greater than that in the organism below it because each organism in the food chain consumes ten times its own weight in food. Therefore, the following formula can be used to determine the amount of mercury in each organism:
Plankton: 1 gramSmall fish: 10 grams (10 x 1 gram)Medium fish: 100 grams (10 x 10 grams)Large fish: 1000 grams (10 x 100 grams)Tuna: 10000 grams (10 x 1000 grams)Therefore, one tuna would contain 10,000 grams, or 10 kilograms, of mercury. When we convert this to grams, we obtain:
10 kg = 10,000 g
By multiplying by the 0.0022 conversion factor, we obtain:
10,000 g times 0.0022 equals 22 grams
Therefore, a person would ingest 22 grams of mercury from eating one tuna.
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Zeke is working on a big project at work with his colleagues. Zeke's role is considered the Co-ordinator according to Dr. Belbin's Team Roles. What is MOST likely one of Zeke's main responsibilities?
Answer:
As a Co-ordinator according to Dr. Belbin's Team Roles, Zeke's main responsibility is to identify the talents of each team member and to delegate tasks accordingly.
Explanation:
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