Biology
State very briefly the chief function of each of the following :
(i) Seminal vesicles
(ii) Prostate gland
(iii) Cowper's gland
(iv) Sperm duct (vas deferens)
Reproductive System
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Answer
(i) Seminal vesicles produce a secretion that serves as a medium for the transportation of the sperms.
(ii) It pours an alkaline secretion into the semen as it passes through the urethra. It neutralises acid in female's vagina.
(iii) The secretion of Cowper's gland serves as a lubricant.
(iv) Sperm duct (vas deferens) help in the transportation of the sperms from the testes upwards to the abdomen.
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(i) increase in population
(ii) increase in the number of parents
(iii) production of new individuals of the same kind
(iv) production of identical individuals
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(ii) The enlarged mature follicle bursts to release the egg.
(iii) The egg is passed down through the oviduct by muscular contractions.
(iv) Clitoris is equivalent to the male penis.
(v) The vagina is a muscular tube.
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(ii) Two hormones secreted from placenta.
(iii) Two types of twins.
(iv) Two layers of the wall of uterus.