Question

(a) How will you measure population density of fish in a lake ?
(b) In a pond there are 100 frogs. 20 more were born in a year. Calculate the birth rate of this population.

Answer 1

Answer:

here is your answer

Explanation:

(a) population density of a fish in a lake can be measured by the number of fish per trap in the lake

(b) total frogs present in the pond = 100 frogs

Number of frog births year =20

birth rate of the population number of frogs birth per year/total population of frogs

20 \ 100 = 0.2 off spring per year