Question

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1) lactation in human
2) gemmule
3) cockroah ovaries

Answer 1

Answer:

Lactation in human

Lactation is the process of milk secretion from the mammary glands of a mother soon after childbirth. The milk thus produced provides nutrition and immunity to the young one. Galactopoiesis is the stage that maintains milk production and requires prolactin and oxytocin.

Gemmule

tough-coated dormant cluster of embryonic cells produced by a freshwater sponge for development in more favourable conditions.

Cockroach ovaries

Cockroach belongs to phylum Arthropoda. ... The female reproductive system of cockroach consists of two large ovaries. The ovaries lie laterally in the 12th and 13th segments. Each ovary is formed of a group of eight ovarian tubules or ovarioles.

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Answer 2

Answer:

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Explanation:

1)Lactation is the process of milk secretion from the mammary glands of a mother soon after childbirth. The milk thus produced provides nutrition and immunity to the young one. Galactopoiesis is the stage that maintains milk production and requires prolactin and oxytocin.

2)Gemmules are internal buds found in sponges and are involved in asexual reproduction. It is an asexually reproduced mass of cells that is capable of developing into a new organism, that is, an adult sponge. Example is Spongilla lacustris.

3)The female reproductive system of cockroach consists of two large ovaries. The ovaries lie laterally in the 12th and 13th segments. Each ovary is formed of a group of eight ovarian tubules or ovarioles. ... Oviducts from each ovary unite into a single median oviduct.