MCQ
Test tube baby means a baby born when
- AIt develops from a non-fertilized egg
- BIt developed in a test tube
- CIt is developed through tissue culture method
- ✓The ovum is fertilised externally and thereafter implanted in the uterus
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$I.$ In a population, birth rate and death rate refer to per capita births and death respectively
$II.$ In nature, we rarely find isolated single individuals of any species
$III.$ The size of population for any species is stable phenomena
$IV.$ Ecological effects of any factors on a population growth are generally reflected in its size/population density

| Column-$I$ | Column-$II$ |
| $a.$ Aestivation | $(i)$ Over wintering |
| $b$. Hibernation | $(ii)$ Over summer |
| $c.$ Diapause | $(iii)$ Suspended development in zooplanktons |
