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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. 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?
2. Which of the following process is responsible for fluctuation in population density?
3. 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?
4. What is an increase in population due to an actual number of individuals added to the population called?
5. Under special conditions which factor is responsible for influencing population density?
6. What is the relative proportion of individuals of various age groups in the population called?
7. Which of the following is responsible for a decrease in population density?
8. Which letter is used to designate the emigration?
9. What was the population of India as per the 2011 census?
10. 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?
11. 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?
12. Which letter is used to designate the death rate (Mortality)?
13. 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?
14. Which of the following formula correctly defines natality?
15. In the given structure what does the ‘?’ indicate?
The population density the number of individuals in a unit area
16. 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?
17. Under normal conditions which of the following factor is responsible for influencing population density?
18. What does the leaving of individuals from a population and moving out said?
19. Which of the following correctly tells about population density at time t+1?
20. Which of the following is responsible for a decrease in population density?
21. Which of the following process is responsible for fluctuation in population density?
22. Which of the following process is responsible for fluctuation in population density?
23. What does coming new of individuals to a population from outside called?
24. Which of the following formula correctly defines growth rate (GR)?
25. Which of the following process is responsible for fluctuation in population density?

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