MCQ
The basic functional unit of the human kidney is
- ✓nephron
- Bnephridia
- Cpyramid
- DHenle's loop
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Reason : Hormones released by them affect sperm motility.
- effective biocontrol agents ofseveral plant pathogens
- A biological control being developed for use in the treatment of plant disease select correct option on the basis of above sentences
| Column $-I$ | Column $-II$ |
| $(a)$ Earthworm | $(i)$ Gizzard |
| $(b)$ Cockroach | $(ii)$ Caecum |
| $(c)$ Frog | $(iii)$ Clitellum |
| $(d)$ Rat | $(iv)$ Cloaca |