Answer
A. centrioles
higher plant cells do not have centrioles in cell division.
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
Answer:
adaptation
Explanation:
it's body adapts to the cold plus they have a very thick skin
D specialised cells are formed
