Explore topic-wise MCQs in Biology.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

Which letter is used to designate the emigration?

A. J
B. E
C. U
D. V
Answer» C. U
2.

Under normal conditions which of the following factor is responsible for influencing population density?

A. Pyramid
B. Births
C. Immigration
D. Emigration
Answer» C. Immigration
3.

Which of the following is responsible for a decrease in population density?

A. Birth rate increase
B. Immigration is more
C. Emigration is more
D. Age structure
Answer» D. Age structure
4.

Which letter is used to designate the immigration?

A. A
B. K
C. S
D. I
Answer» E.
5.

Which letter is used to designate the death rate (Mortality)?

A. J
B. D
C. S
D. U
Answer» C. S
6.

Which of the following is responsible for an increase in population density?

A. Age structure
B. Emigration is more
C. Immigration is more
D. Death rate increase
Answer» D. Death rate increase
7.

Which of the following correctly tells about population density at time t+1?

A. Nt + 1 = Nt + [(B + I) – (I + E)]
B. Nt + 1 = Nt + [(B + I) – (D + E)]
C. Nt + 1 = Nt + [(B + D) – (B + E)]
D. Nt + 1 = -Nt + [(B + I) – (D + E)]
Answer» C. Nt + 1 = Nt + [(B + D) – (B + E)]
8.

Which letter is used to designate the birth rate (Natality)?

A. B
B. E
C. I
D. K
Answer» B. E
9.

Which of the following process is responsible for fluctuation in population density?

A. Mimicry
B. Natality
C. Hibernation
D. Age structure
Answer» C. Hibernation