alleryThe first fluid released from the mammary glands after childbirth, rich in immune substances for the newborn, is called:
AColostrum
BEndosperm
CLactose
DAmnion
Answer & Solution
Correct answer: A. Colostrum
1. Lactation is milk production from the mammary glands after childbirth.
2. The first fluid released in the first 2 to 3 days is called colostrum.
3. Colostrum contains immune substances that give immunity to the newborn.
4. Endosperm is plant nutritive tissue, lactose is a milk sugar, and amnion is a foetal membrane, so they are ruled out.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 17 Reproduction in Plants and Animals "Lactation", p.260_
Keep practising Unit 5D: Organismal Reproduction & Life Cycles
Browse all Unit 5D: Organismal Reproduction & Life Cycles questions for AP Biology, or explore more Biology topics.
Related questions
Asexual reproduction differs from sexual reproduction because asexual reproductionInsect-pollinated flowers usually attract insects withIn wind-pollinated flowers, pollen grains are usuallyOnion is propagated vegetatively byBryophyllum reproduces vegetatively from itsPotato plants are propagated commercially byReproduction by formation of spores is seen inThe ovary of a flowering plant develops after fertilisation into