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Class 12 Biology Practice Test: Organisms and Populations - Population Growth
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Class 12 Biology Practice Test: Organisms and Populations - Population Growth
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25 Questions

1. What does the leaving of individuals from a population and moving out said?
2. 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?
3. Which of the following correctly tells about population density at time t+1?
4. 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?
5. Which letter is used to designate the birth rate (Natality)?
6. Which letter is used to designate the immigration?
7. 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?
8. If a new habitat is just being colonized, what contributes more significantly to population growth than the birth rate?
9. Under special conditions which factor is responsible for influencing population density?
10. Which is the second largest populous country in the world?
11. Which of the following is responsible for an increase in population density?
12. What is an increase in population due to an actual number of individuals added to the population called?
13. Under normal conditions which of the following factor is responsible for influencing population density?
14. Which of the following process is responsible for fluctuation in population density?
15. Which one of the following causes a population explosion?
16. 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?
17. 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?
18. Which of the following process is responsible for fluctuation in population density?
19. 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?
20. What does coming new of individuals to a population from outside called?
21. 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?
22. Which letter is used to designate the emigration?
23. 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?
24. In the given structure what does the ‘?’ indicate?
The population density the number of individuals in a unit area
25. What is the relative proportion of individuals of various age groups in the population called?

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