MCQ
$A$ -Endosperm is formed by primary endosperm cell.
$R$- Embryo is formed from zygote.
- ✓$A-R$ correct
- B$A-R$ incorrect
- C$A$ -correct, $R$ -incorrect
- D$A$ -incorrect, $R$-correct
$R$- Embryo is formed from zygote.
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| Column $- I$ | Column $- II$ |
| $(P)$ Biodiversity in India | $(1)\; 45,000$ |
| $(Q)$ Plant species in India | $(2)$ Insects |
| $(R)$ Most species rich group | $(3)$ Fungi |
| $(4) \;8.1\%$ |
$A.$ Detrivores perform fragmentation.
$B.$ The humus is further degraded by some microbes during mineralization.
$C$. Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.
$D$. The detritus food chain begins with living organisms.
$E$. Earthworms break down detritus into smaller particles by a process called catabolism.
Choose the correct answer from the options given below:
Choose the correct option for $A$ and $B$