METAMORPHOSIS IN INSECTS
Metamophosis is defined as the series of gradual changes of form and shape of an insect from the fertilised egg (immature stage) to adult (mature stage of adulthood). Certain organisms when they are hatched from eggs do not directly resemble…
REPRODUCTION IN COCKROACH
The cockroach exhibits incomplete metamorphosis. This starts from fertilised eggs to nymph and finally to adult or imago stage i.e. Egg -> Nymph -> Adult. Mating begins when the male cockroach introduces sperms into the posterior part of the female’s…
IODINE
Iodine was discovered in 1812 by Courtois. Iodides occur in minute quantities in sea water. They are also found as organic compounds in some sea weeds and as deposits of sodium (NaIO3)and calcium trioxoiodates (V), (Ca (IO3)2) in association with…
Study Guide
