Which one of the following is not formed from mesoderm?

Indicate which of the following sentences are true.
i) The first menstrual cycle is called menarche.
ii) Menopause occurs in the female at the age of 45-50 years.
iii) Vagina of female reproductive system is a primary sex organ.
iv) Breast is the accessory sex character.

In humans, the stage of growth in a young person when the reproductive organs become functional is called

Which one of the following is not part of the male reproductive system?

Which of the following traits is not passed on from parents to their young one?

Which of these are changes which occur during puberty in a boy?

I. Voice breaks

II. Hips become wider

III. Shoulders become wider

IV. Menstruations starts

The animals such as ............... which give birth to young ones are called ............

The information in which row completes the given statement?

Which of the following is an oviparous animal?

Which of the following changes is not observed in girls at the time of puberty?

Adrenaline is a hormone secreted by adrenal gland. Which of the following statements is correct for adrenaline?