Answer:
The only organism that doesn't eat prey is prob scavengers, because scavengers eat dead organisms, so I don't rlly think dead organisms are preys :3
Explanation:
:3
RNA, is ribonucleic<span> acid
DNA, is </span><span>deoxyribonucleic acid</span>
In the cross-section of a kidney, there are three main regions that become apparent. The outer region is called the "renal cortex", this is where the capillaries are mainly located. The deeper and darker region, that looks like small pyramids arranged in a semicircle is called the "renal medulla", where the filtering of the blood takes place. The flat, tube-like structure is called the "renal pelvis".
Yes because the cell that the organism is made out of is its life source. For example, bacteria is a single celled organism.