Their atoms are physically connected together to form different structures
Answer:
Total 46, 23 from each parent
Explanation:
There are valves in the vessels that prevents backflow, just like in the viens. ... the lymph vessels to ensure that the flow of lymph
Answer:
They are usually found in the center and they are called embyro sacs.
Explanation:
A cell can only respond to signals from other cells, not from the physical environment. receptor activation. The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on: the presence of the appropriate receptors on the cells of the target tissue or organ.
