A population of snakes has 900 individuals. They have a death rate of 30 per year and a birth rate of 20 per year. Assuming 6 snakes migrate into the population and 3 migrate out of the population per year, how many individuals would there be after the first year? (To answer, write numerals in the box below.)

Question

Biology

Dario Hodge

20 August, 10:46

A population of snakes has 900 individuals. They have a death rate of 30 per year and a birth rate of 20 per year. Assuming 6 snakes migrate into the population and 3 migrate out of the population per year, how many individuals would there be after the first year? (To answer, write numerals in the box below.)

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Answers (1)

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Ralph · Answer 1

893 snakes after first year

Explanation:

total population = 900

death = 30 per year left = 900-30 = 870

birth each year = 20 per year so 870 + 20 = 890 snakes

6 snakes migrate into the population = 890 + 6 = 896 snakes

3 migrate out of the population per year = 896-3 = 893 snakes