First one is a and second one is b
Carbohydrates, most lipids contain chains of carbon atoms bonded to oxygen and hydrogen atoms. Some lipids are broken down as a source of usable energy for cells. ... They store large amounts of chemical energy in organisms.
Embryonic tissue supporting filling and photosynthetic
Ground tissues conducting
Vascular tissues and covering
Dermal tissue
Fertilization which unites the sperm and egg.