MCQ
Sperm head gets embedded in _________ after spermatogenesis.
- AStroma
- BPolar cells
- ✓Sartoli cells
- DThela interna
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| Column $- I$ | Column $- II$ |
| $(a)$ Phytoplankton, grass | $(p)$ First trophic level |
| $(b)$ Man, Lion | $(q)$ Herbivore |
| $(c)$ Zooplankton, Cow, Grasshopper | $(r)$ Third trophic level |
| $(d)$ Birds, Wolf | $(s)$ Top carnivore |