Answer:
A) Germination of seed: The process in which a small plant (seedling) is emerged from a seed is called seed germination.
B) 1) In pollination, pollen transfer from male to the stigma of female while fertilization is the joining of sperm and egg cells.
2) Pollination occurs outside the flower while fertilization occurs inside the flower.
C) Tissue: A group of cells perform a particular function is called tissue.
D) Skin and kidney are the two organs which are formed from epithelial tissue and its function is protection and absorption.