A.
Animal cells are very close to plant cells, but they have one key difference that separates them; the cell wall.
A cell wall is a thicker layer on the outside of the cell membrane. These are unique, and are <u>only found in plant cells.</u> Animal cells just have the cell membrane as their outer part. This enables them to change shape due to the membrane being very flexible.
Plant cells do not change, and only conform to their cell wall's shape. This enables them to grow up (literally) to help gather sunlight and enable photosynthesis.
Your peripheral nervous system includes the bunch of nerves outside your brain and nerves outside your spinal cord. Your central nervous system includes your actual spinal cord and brain.
One thing you could have done is sat down to breakfast. Your peripheral nervous system sent the information about what you smelled to your brain, and also sent nerves impulses to your brain to bend your legs. Your brain, which is in the central nervous system, can distinguish different smells.
Answer:Sugar molecules contain carbon, hydrogen, and oxygen: Their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins and DNA)
Answer: The utilization of different resources requires different adaptations, selecting for different traits.
Explanation:
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Birds with larger beaks were better able to utilize the large seeds.
DNA analysis shows that their DNA is almost identical with only minor changes.
The diversity in environments on each island provides many opportunities to study how related organisms have adapted over time.
Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.
