(C) The birth rate is calculated as the number of new offspring produced per unit of the existing population per unit of time.Initial number of lotus

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$0.4$ offspring per lotus per year

(C) The birth rate is calculated as the number of new offspring produced per unit of the existing population per unit of time.Initial number of lotus plants $= 20$Number of new plants added (offspring) $= 8$Birth rate $= \frac{\text{Number of new offspring}}{\text{Initial population}} = \frac{8}{20} = 0.4$ offspring per lotus per year.

Class 12 Biology Organisms and Populations Population Attributes

Medium

If in a pond there are $20$ lotus plants of last year and through reproduction $8$ new plants are added. Then the birth rate is

A
$0.8$ offspring per lotus per year
B
$0.2$ offspring per lotus per year
C
$0.4$ offspring per lotus per year
D
$0.6$ offspring per lotus per year

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Organisms and Populations

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Population Attributes

Select the correct option based on the number and size of offspring produced by the following organisms:
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If in a pond there are $20$ lotus plants of last year and through reproduction $8$ new plants are added. Then the birth rate is

Similar Questions

Select the correct option based on the number and size of offspring produced by the following organisms:$I -$ Oysters,$II -$ Birds,$III -$ Pelagic fishes,$IV -$ Mammals(Many small-sized offspring) $\quad$ (Few large-sized offspring)

The size of population does not depend on?

Find out the population density when $N$ is $1000$ and $S$ is $100 \, m^{2}$.

If the age pyramid of a population is bell-shaped,it will show:

Members of the same species living in the same habitat interact with each other to form a ........ .

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Select the correct option based on the number and size of offspring produced by the following organisms:
$I -$ Oysters,$II -$ Birds,$III -$ Pelagic fishes,$IV -$ Mammals
(Many small-sized offspring) $\quad$ (Few large-sized offspring)