What is STD's ? Name two STD's.

What are STDs ? Name two STDs diseases. How can they be prevented ?

What are lUDs ? Name two lUDs. How do they check the Birth Control ?

What is endocytosis? Name two processes of endocytosis.

What is a gland? Name the two types of glands

What is variation ? Name two types of variations . What is the condition for two quantities to be in inverse variation .

What is phyllotaxy? Name two types of phyllotaxy.