Explore topic-wise MCQs in Biology.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

If in a population the natality is 25 and mortality is 55, in a span of 10 years. What is the growth rate (GR) of that population?

A. -3
B. 100
C. 28
D. -38
Answer» B. 100
Discussion
2.

If in a population the natality is 50 and mortality is 80, in a span of 10 years. What is the growth rate (GR) of that population?

A. 28
B. 100
C. 10
D. -3
Answer» E.
Discussion
3.

If in a population the natality is 30 and mortality is 5, in a span of 10 years. What is the growth rate (GR) of that population?

A. 0
B. 2.5
C. 10
D. -10
Answer» C. 10
Discussion
4.

If in a population the natality is 20 and mortality is 10, in a span of 10 years. What is the growth rate (GR) of that population?

A. 0
B. 20
C. 1
D. -10
Answer» D. -10
Discussion
5.

The 95 individuals are dying per year in a population, and the mid-year population is 7000. What is the death rate of that area?

A. 200
B. 13.6
C. 100
D. 395
Answer» C. 100
Discussion
6.

The 75 individuals are dying per year in a population, and the mid-year population is 7000. What is the death rate of that area?

A. 13
B. 30
C. 10.7
D. 39
Answer» D. 39
Discussion
7.

The 25 individuals are dying per year in a population, and the mid-year population is 7000. What is the death rate of that area?

A. 13
B. 30
C. 2
D. 3.6
Answer» E.
Discussion
8.

The 20 individuals are dying per year in a population, and the mid-year population is 7000. What is the death rate of that area?

A. 13
B. 30
C. 2.8
D. 29
Answer» D. 29
Discussion
9.

The 100 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?

A. 2
B. 1.0
C. 20
D. 2
Answer» D. 2
Discussion
10.

The 80 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?

A. 20
B. 16
C. 4
D. 2
Answer» C. 4
Discussion
11.

The 20 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?

A. 20
B. 1.0
C. 4
D. 2
Answer» D. 2
Discussion
12.

The 10 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?

A. 20
B. 1.6
C. 4
D. 2
Answer» E.
Discussion
13.

Which of the following formula correctly defines growth rate (GR)?

A. GR = ( frac{Natality Mortality}{Unit time} )
B. GR = ( frac{Natality Natality}{Unit time} )
C. GR = ( frac{Mortality Natality}{Unit time} )
D. GR = ( frac{Mortality Mortality}{Unit time} )
Answer» B. GR = ( frac{Natality Natality}{Unit time} )
Discussion
14.

Which of the following formula correctly defines mortality?

A. Mortality = ( frac{Number , of , deaths , per , year}{Mid-year , population} ) x 1000
B. Mortality = ( frac{Number , of , births , per , year}{Mid-year , population} ) x 1000
C. Mortality = Number of deaths x 1000
D. Mortality = Number of births x 1000
Answer» B. Mortality = ( frac{Number , of , births , per , year}{Mid-year , population} ) x 1000
Discussion
15.

Which of the following formula correctly defines natality?

A. Natality = ( frac{Number , of , deaths , per , year}{Mid-year , population} ) x 1000
B. Natality = ( frac{Number , of , births , per , year}{Mid-year , population} ) x 1000
C. Natality = ( frac{Number , of , births + Number , of , deaths}{Mid-year , population} ) x 1000
D. Natality = Births Deaths x 1000
Answer» C. Natality = ( frac{Number , of , births + Number , of , deaths}{Mid-year , population} ) x 1000
Discussion