One reason could be that they do not have most of the seven characteristics of life (reproduction, homeostasis, heredity, response to the environment, growth, cellular organization, and metabolism.)
Hopes this helps:
Answer:
The body of a fish is streamlined because, it increase the speed of the fish in the water. The more the streamlined shapes more easier for the fish to swim in the water.
It is an order to reduce pain and soreness after exercise
Well since Crows can eat fruits veggies and dead animal bodies, all of this would increase because the crows were the ones controlling how much they increase