ICSE Class 12 Biology — Flashcards for Quick Revision

A: Angiosperms show alternation of generations between a diploid sporophytic phase and a haploid gametophytic phase. The sporophytic phase is (2n) and develops from the diploid zygote. The gametophytic p

A: Flowers carry the male and female reproductive organs of angiosperms. Stamens produce pollen grains, and carpels contain ovules. Because pollination, fertilization, seed formation, and fruit formation

A: A typical stamen has three parts: filament, anther, and connective. The filament is the stalk, the anther is the fertile terminal part, and the connective is the tissue joining the two anther lobes.

A: Reproduction is the process that results in the formation of new individuals of the same kind, usually with slight genetic, structural, and physiological variations. In humans, it is sexual and vivipa

A: Secondary sexual characters are external features that distinguish males and females. In males, they appear at 12-14 years and include beard, moustache, chest hair, broad chest, muscular body, and dee

A: Primary sex organs are the organs that produce gametes and sex hormones. In males, the testes produce sperms and testosterone. In females, the ovaries produce ova, estrogens, and progesterone.

A: Reproductive health means total well-being in all aspects of reproduction, including physical, emotional, behavioural, and social well-being. It is not just the absence of disease; it also includes he

A: It helps build healthy families, reduce sexually transmitted diseases, support safe motherhood, and control population growth. It also promotes correct knowledge about adolescence, safe sexual practic

A: The Family Welfare Programme was initiated in 1951 in India. It aimed to provide family planning services within maternal and child health care, reduce birth rate, and support a stable population thro