Define (a) Juvenile phase, (b) Reproductive phase, (c) Senescent phase.

(a) gametes, zygote, embryo, seedling

(d) menstruation

(a) testis → vasdeferens → urethra

Sperm comes out from testis into the vas deferens and then passes through urethra before ejaculation. The secretions of seminal vesicle and prostrate glands provide nutrition to the sperms and...

(c) Vas deferens is not a part of the female reproductive system in human beings.

The embryo gets embedded in the wall of the uterus

Reproductive health is the total well-being in all aspects of reproduction. The aspects which have to be given special attention in the present scenarios are  Counselling and creating awareness among people,...

An annual has a shorter juvenile phase. Since its entire life cycle has to be completed in one growing season, its juvenile phase is shorter.

Reproductive health refers to a total well-being in all aspects of reproduction i.e., physical, behavioural, psychological, social and physiological.

(a) Each piece regenerates into a new Planaria. (b) Its filaments break into smaller pieces or fragments and each fragment gives rise to a new filament. (c) It releases spores which germinate into...