The biological Edema refers to the swelling of any portion of the body which could be small or large. The swelling is caused when the fluid from the blood vessel is leaked to the nearby tissue which causes the redness also.
Edema is assessed by measuring the depth of the pit formed by swelling in which 4+ edema shows that the edema is very deep pitted (6-8mm) which could last for 2-5 minutes.
without the sun we probably be freezing that's why we need the son it keeps us warm and the sun gives use radiation energy which could help us power things.
Predation and parasitism both involve the other organism getting captured. The difference is that predation is when the other organism gets eaten and parasitism is when the organism gets harmed. Why organisms fight?
