I think the answer to this would be an inversion
They allowed scientists to study heredity and further develop it
Abiotic: nonliving
Biotic: living
A rabbit needs sun/water/habitat (abiotic)
A rabbit also needs plants/grass/trees maybe for shade? (Biotic)
These are not the best answers but you think of some!
Pea plants had easily observable traits which consisted of 7. It was easier for him to manipulate them. And they grew fast.
Answer:
The stomata close, cutting off transpiration and gas exchange. - B