Class 12th Biology 2018 Set1 Delhi Board Paper Solution
Medically it is advised to all young mother that breastfeeding is the best for their newborn babies. Do you agree? Give reasons in support of your answer.
Yes, i do agree with the fact that breastfeeding is the best for newborn babies.
Mammary glands starts producing milk at the end of pregnancy. Milk produced during the initial few days and lactation is called COLOSTRUM which contains several antibodies.
It helps in developing resistance for newborn baby. It help the baby fight of viruses and bacteria. Thus, breast milk is packed with disease fighting substance that protect from illness.
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- Q:-
Fill in the blanks:
(a) Humans reproduce __________. (asexually/sexually)
(b) Humans are__________. (oviparous/viviparous/ovoviviparous)
(c) Fertilization is __________ in humans. (external/internal)
(d) Male and female gametes are __________. (diploid/haploid)
(e) Zygote is __________. (diploid/haploid)
(f) The process of release of the ovum from a mature follicle is called__________.
(g) Ovulation is induced by a hormone called the __________.
(h) The fusion of male and female gametes is called _____________.
(i) Fertilisation takes place in _____________.
(j) Zygote divides to form _____________which is implanted in uterus.
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