In which of the following organisms, the feature of menstrual cucle during sexual reproduction is observed ?
(a) Most seasonal breeders
(b) Human females
(c )Old-world monkeys and apes
(d)Tiger

Which of the following statements are correct for events involved in sexual reproduction ? Justify them. (a) Fundamental similarity in events (b) Sexual structures are same (c ) Sequential events

During development which of the following organs is formed first (a) Heart (b) Brain (c) Neural tube (d) Skin

Which is the common ancestor of old world monkeys , apes and humans ?

Which is the common ancestor of old world monkeys, apes and humans?

Which of the following statements are correct ? (a) Men are more close to new world monkeys (b) Men are more close to old world monkeys (c) Apes and men have a common ancestory (d) Men were evolved from monkeys

Which of the following statements are correct ? a.The gamete transfer is a crucial step of sexual reproductive . b. In algae and fungi , both gametes are mostly non - motile c. In most of higher organisms, the female gamete is stationary d . In most of the organisms, fertilization is internal.