Give the biological/ technical term for the following.​ Eye lens losing flexibility results in a kind of long-sightedness in elderly people.​

Q. Give the biological/technical terms for the following.
i) A membrane which allows the passage of molecules selectively.
ii) The suppressed allele of a gene.
iii) Structure that carries visual stimuli from retina to the brain.
iv) WBCs squeeze through the walls of the capillaries into the tissue.
v) Protective coverings located round the human brain and spinal cord.
vi) Eye lens losing flexibility resulting in a kind of long sightedness in elderly people.
vii) Harmones which stimulate other endocrine glands to produce their specific harmones.
viii) The phase in the menstrual cycle in which the remnant of follicle in the ovary turns to Corpus luteum.
ix) Statistical study of human population.
x) Artificially introducing weakend germs or germ substance into the body for developing resistance to a particular disease.

Q. Given the biological/technical terms for the following.
$\left(i\right)$ A mixture of smoke and fog.
$\left(ii\right)$ Capacity of our body to resist diseases.
$\left(iii\right)$ Fixing of developing zygote on the uterine wall.
$\left(iv\right)$ The permanent stoppage of menstruation at about the age of $45$ years in a female.
$\left(v\right)$ The hormone increasing reabsorption of water by kidney tubules.
$\left(vi\right)$ A thin membrane covering the entire front part of the eye.
$\left(vii\right)$ The lens of eye losing flexibility resulting in a kind of long-sightedness in middle-aged people.
$\left(viii\right)$ The number of persons living per square kilometre at any given time.
$\left(ix\right)$ The sound produced when the atrioventricular valves close in the heart.
$\left(x\right)$ The process by which blood cells engulf bacteria.