Answer:
Antigens are secreted by the endocrine system
Explanation:
The main job of the innate immune system is to fight harmful substances and germs that enter the body, for instance through the skin or digestive system. The adaptive (specific) immune system makes antibodies and uses them to specifically fight certain germs that the body has previously come into contact with
It is Vegetative propogation
Answer:
Biomass is an organic matter that cointains stored energy,
Extra stuff reguarding the answer:
such as animals waste, crops, wood, seaweed
Answer:
The plasma membrane is the thin, flexible boundary between a cell and its environment. Plasma membranes with less cholesterol will have decreased fluidity at low temperatures and higher fluidity at high temperatures compared to the membrane with more cholesterol. This is because it prevents the fatty acid tails from sticking together!
