Answer: Sunlight
Explanation: Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
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Habitat destruction is the key one out of all of these. Animals being kept at the zoo for research are usually endangered or vulnerable species which is doing more good than harm to them. Legal hunting of animals is most likely for rabbits, deer, and a stabilized population in the wild. Habitat destruction can destroy many populations and cause loads of damage. An example of that would be the Australian wildfires at the start of 2020.
Answer:
In a comparison of birds and mammals, the condition of having four limbs is a shared ancestral character
Multi-cellular Heterotrophs
Animals have more than one cell and can't produce their own food
Answer: B and C
Explanation: Both are below 6 on the scale so their not as hard or tough.