Answer:
if these mixtures are feed as only source of food African grey parrots become ill and ultimately die.
not sure about the answer but see if this is correct.
It's the concentration of sense organs, nervous control, etc., at the anterior end of the body, forming a head and brain, both during evolution and in the course of an embryo's development.
The population of dandelions can be affected boa population of rabbits due to the food web.The rabbits feed on the dandelions therefore decreasing the amount of dandelion in the area
