Answer and Explanation:
The lymph node are the sites for the formation of lymphocytes and monocytes. These are concerned with antibody formation and phagocytosis of foreign materials respectively. In the lymph nodes, bacteria and other harmful materials are removed from lymph.
A.Nitrogen
B.Humus
c.Manure
hope this helps
There are no choices but examples of biotic factors are trees, mosses, ferns, fungi, mammals, birds, reptiles, worms, plants, and lichens.
Natural Selection is: <u>the process whereby organisms better adapted to their environment tend to survive and produce more offspring.</u>
An example of this is our appendix. We no longer use our appendix because food nowadays is softer than what our ancestors used to eat.
Our ancestors could quickly digest (through their appendix) tree barks because they ate them frequently versus now we don't even use them at all
The dependent variable is the part of the experiment that depends on the other part, the independent part. The dependent variable would be the plant because it's growth depends on the light wavelength.
