Question

29. AIDS can be transmitted through
(1) Blood transfusion
(2) Breast feeding
(3) Sexual contact
(4) All of these



30. Which is the only phylum in the kingdom Animalia
without any nerve cell?
(1) Porifera
(2) Coelenterata
(3) Annelida
(4) Nematoda



31. Which of the following pairs is/are incorrectly
matched?
(i) Implantation-Uterus
(ii) Fertilization-Seminiferous tubules
(iii) Spermatogenesis -Fallopian tube
(iv) Oogenesis-Ovary
(1) (i) and (iii)
(2) (ii) and (iii)
(3) (i) and (iv)
(4) (ii) only
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Answer 1

Answer:

29. all of these

30. coelenterata

Answer 2

Answer:

All of these

Explanation: