The diaphragm is a type of birth control. It is a shallow, bendable cup that is put inside the vagina. A diaphragm prevents pregnancy acting as a barrier for sperm to entry the cervix and joining an releases egg. Sometimes, diaphragm is used together with cream or gel that kills sperm.
Answer:
The correct answer is option D
d) Children have an immature immune response.
Explanation:
It is true that Children have an immature immune response which develops throughout life on continuous exposure to germs and diseases.
Biocontrol strain,Bacillus sp.EN71-1 ,Rahnella aquatilis HX2 ,strains of Enterobacter ,agglomerans,Psedomonas spp. ,etc are controlled by a beneficial bacteria.
The correct answer is B. because it's true that Capillaries are connected between the arteries and veins and that Pulmonary arteries transport blood low in oxygen from the right ventricle to the lungs. But veins carry blood towards your heart so B isn't true