I believe that the answer is D. If something has evolved, it can not interbreed with its old species. I think this is right!
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<span>Histidine is what it would produce.</span>
Enters the left atrium...this is the oxygenated blood from the lungs (pulmonary)
1.
B
Photosynthetic organisms require light, in which the sun’s rays can only go so far
2.
C
The energy flow pyramid goes from decomposers to producers, meaning that if producers are dying out due to lack of nutrients, there must be something wrong with the decomposer population
