Which process is responsible for changing the frequency of alleles observed in the medium ground finch population?
А
natural selection
B
selective breeding
С
genetic equilibrium
D
convergent evolution

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

the animal that would be cutest if scaled down to the size of a cat? elephant