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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. Which of the following is responsible for an increase in population density?
2. Which of the following formula correctly defines mortality?
3. Which of the following is responsible for an increase in population density?
4. Which is the second largest populous country in the world?
5. What does coming new of individuals to a population from outside called?
6. Which of the following correctly tells about population density at time t+1?
7. At what year is the census carried?
8. Which letter is used to designate the emigration?
9. Under normal conditions which of the following factor is responsible for influencing population density?
10. 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?
11. Which of the following process is responsible for fluctuation in population density?
12. 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?
13. 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?
14. 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?
15. Which of the following process is responsible for fluctuation in population density?
16. Which of the following formula correctly defines natality?
17. Which letter is used to designate the immigration?
18. Which of the following process is responsible for fluctuation in population density?
19. If a new habitat is just being colonized, what contributes more significantly to population growth than the birth rate?
20. What does Nt define?
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. 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?
23. Which of the following process is responsible for fluctuation in population density?
24. 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?
25. Which letter is used to designate the birth rate (Natality)?

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