A food chain has four trophic levels. The fourth level has 10 hawks that are a natural predator to the snakes in the ecosystem. How much energy would be available in the first trophic level?

A.
1000

B.
100

C.
1

D.
10,000

the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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