Species And Population Test Online Question Answer Practice Mock Quiz

Biology

1. Cause of decline of population in 1927 was:

Second World War

Lack of food

Floods

World War I

Question 1 of 14

2. If a certain human population has a higher-than-usual percentage of individuals with some genetic disorder. The most likely explanation is:

Gene flow

Natural selection

All of these

Genetic drift

Question 2 of 14

3. The first step in specification will be:

Genetic drift

All of these

Apomictic mating

Geographical environmental isolation

Question 3 of 14

4. Elephants, man and mountain sheep:

Show more biotic potential

Are called r-strategists

All of these

Are called K-strategists

Question 4 of 14

5. The equation dN/dt = r_m N, (the Law of population growth) given by French mathematician P.F. Verhulst suggests the rate of increase of population per unit time depends upon:

Innate capacity for increase

Population size

Unutilized opportunity for population growth

All of these

Question 5 of 14

6. The transient population between two adjacent ecotypes is called:

Deme

Polytypic

Hybrid

Cline

Question 6 of 14

7. The stationary phase of a population occurs when:

Natality = Mortality

Mortality > Natality

Natality = 0

Natality > Mortality

Question 7 of 14

8. Wild duck and pintail duck produce fertile offspring’s only in captivity but seldom do so in natural habitats because of:

Post reproductive isolation

Ethological isolation

Genetic drift

Mechanical isolation

Question 8 of 14

9. For better survival of human Indian population, which is the most important step?

Afforestation

All of these

Reduction in population density

Question 9 of 14

10. Large gap between natality and motality will result in:

Prosperous country

Low dependency ratio

Less old persons in relation to children

More old persons

Question 10 of 14

11. The major threat to human species is:

Scarcity of food

Excessive population and pollution

Life from space

Earthquakes and volcanic eruption

Question 11 of 14

12. About thirteen different species of Galapagos finches were each adapted to eating different food. This is an example of:

Gene flow

Sympatric speciation

All of these

Adaptive radiation

Question 12 of 14

13. Population whose members reproduce asexually is called:

Apomictic

Panmictic

Allopatric

Amphimictic

Question 13 of 14

14. The apex of age pyramid of a stationary population is:

Broad

Almost equal to base

Very narrow

None of these

Question 14 of 14

Test Name	Species and Population Test
Subject	Biology
Test Type	Mcqs
Total Question	14
Total Marks	28
Total Time	14
Test Help For	All Grades Biology Everyday Science General Knowledge CBSE Exam All Medical Entrance Exams

Test By Subject	Science
Test By Topics	Biology Subject

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Species and Population Test Online Question Answer

Species and Population Test Online Question Answer

Biology

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