MCQ
The pyramid of number is based on:
- AUnit per area
- BFood per individual
- CIndividuals in trophic level
- DEnergy per unit area
Explanation:
Pyramid of number is an ecological/ Eltonian pyramid.
It is a graphical representation of a number of individuals at each trophic levels.
It puts organisms sequence-wise, with producers at the base and various consumers at successively higher levels.
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| Column$-I$ | Column$-II$ |
| $(a)$ Placenta | $(i)$ Androgens |
| $(b)$ Zona pellucida | $(ii)$ Human Chorionic Gonadotropin $(hCG)$ |
| $(c)$ Bulbo$-$urethral glands | $(iii)$ Layer of the ovum |
| $(d)$ Leydig cells | $(iv)$ Lubrication of the Penis |
$(a)\quad(b)\quad(c)\quad(d)$
Identify $A$ and $B$ and choose the correct option
$a\quad \;b\quad\;c\quad\;d$