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sp2606 [1]
3 years ago
6

What is natural selection?

Biology
1 answer:
Deffense [45]3 years ago
5 0

Answer:

those best suited to demands of environment survive

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Answer:

1. Explain why predators need to eat more than primary consumers.  

Explanation:

Predators need to eat more than primary consumers because in the trophic pyramid, primary consumers are at the bottom which means they receive the most energy because they eat the plants. As the pyramid goes on upwards, energy is lost each time, so that means by the time it reaches the top of the pyramid their is only about 0.1% of the energy we started with when the primary consumers ate the producers. Meaning, the predators need to eat more than the primary consumers because although the predators eat more than the primary consumers, they still at the end of the day get the same amount of energy just one eats more than another.  

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Which of these in NOT made up of two or more substances that are combined physically?
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Which oragisms do primary consumers mainly eat?
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A producer

Hope this helps :)
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