In which of the following animals do the testes descend into the scrotum only during the breeding season?
- AFrog
- BKangaroo
- CShrew
- DBat
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How much lower is the temperature of the scrotum compared to the abdominal cavity?
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View SolutionMatch the columns.
Column $I$ Column $II$ $(a)$ Seminiferous tubules $(1)$ Site for storage and maturation of sperm $(b)$ Urethra $(2)$ Structure which releases sperm cells $(c)$ Seminal vesicle $(3)$ $A$ paired gland producing nutrients $(d)$ Epididymis $(4)$ Coiled duct where sperm development begins
| Column $I$ | Column $II$ |
| $(a)$ Seminiferous tubules | $(1)$ Site for storage and maturation of sperm |
| $(b)$ Urethra | $(2)$ Structure which releases sperm cells |
| $(c)$ Seminal vesicle | $(3)$ $A$ paired gland producing nutrients |
| $(d)$ Epididymis | $(4)$ Coiled duct where sperm development begins |
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View SolutionSertoli cells are also called
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View SolutionGive scientific reasons: Testis are located in the scrotum outside the abdominal cavity.
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