Answer: Option II.
B cells and T cells undergo colonial selection after encountering an antigen.
Explanation:
B cells are a type of lymphocytes or white blood cells that produce hormones so as to activate the immune system in other to provide a defence or fight against pathogens.
T cells are lymphocytes immune cells that fight against pathogens in the body.
Both T cells and B cells undergo colonial selection after encountering an antigen. The major difference between them is that T cells
Answer:
The material covering the bee is called pollen, this material is produced from small spores that come from male trees and flowers.
Explanation:
GRIMNER
Grow
Reproduce
Irritability (ie, being able to sense changes in the environment, detect danger, etc.)
Movement
Nutrition (eating and drinking)
Excretion (get rid of waste materials)
Respire (breathe)
Answer:
D-Dehydrated
Explanation:
Salt draws all the water and moisture put of a food making it dehydrated
The option that u have selected is perfectly right.
