A biologist studied the population of rats in a barn- He found that the average natality was 250- average nbsp-mortality 240- immigration 20 and emigration 30- The net increase in population is -10155zero

The correct option is D zeroNatality = 250, Immigration = 20 #160; #160;Mortality = 240, Emigration = 30 #160; #160;Increase in Popolution size #16 ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Biology

Vaccination and Immunisation

A biologist s...

Question

A biologist studied the population of rats in a barn, He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is :

No worries! We‘ve got your back. Try BYJU‘S free classes today!

zero

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D zero
Natality = 250, Immigration = 20
Mortality = 240, Emigration = 30
Increase in Popolution size
P.D = [(Natality+Immigration)-(Mortality+Emigration)]
= [(250 + 20 - (240 + 30)]
= 0

Suggest Corrections

Similar questions

A biologist studied the population of rats in a barn. He found that average natality was 250, average mortality was 240, immigration 20 and emigration 30. The net increase in population is

Q. Multiple Choice Questions.
A biologist studies the population of rats in a barn. He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is

Q. Biologist studied the population of rats in a barn initially the number of rate were 200 now 15 new rats were born and average mortality was 20. So, what will be the final population?

Q. A biologist studied the population of rats in a barn. Initially the number of rats were

200

. Now

15

new rats were born and mortality was

20

. So, what will be the final population?

Q. A biologist studied the population of rats in a barn. He found that in a year the number of rats increases to 250 from an initial population of 200. What is the birth rate for the given population?

Join BYJU'S Learning Program

A biologist studied the population of rats in a barn, He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is :

The correct option is D zeroNatality = 250, Immigration = 20 Mortality = 240, Emigration = 30 Increase in Popolution size P.D = [(Natality+Immigration)-(Mortality+Emigration)] = [(250 + 20 - (240 + 30)] = 0

The correct option is D zero
Natality = 250, Immigration = 20
Mortality = 240, Emigration = 30
Increase in Popolution size
P.D = [(Natality+Immigration)-(Mortality+Emigration)]
= [(250 + 20 - (240 + 30)]
= 0