Zoology - Organisms and Populations Question with Solution | TestHub
ZoologyOrganisms and PopulationsPopulationsEasy2 minPYQ_2020
ZoologyEasysingle choice
If birth rate = B, Death rate = D, Emigration = E,Immigration = I, then choose the correct match
| Column I | Column II | ||
| a. | Population is stable | (i) | B + I > D + E |
| b. | Population is increasing | (ii) | B + I = D + E |
| c. | Population is increasing | (iii) | B + I < D + E |
| d. | Population equation is invalid | (iv) | B + E > D + I |
Options:
Answer:
A
Solution:
Population is stable-when the sum of birth rate and immigration is equal to the sum of death rate and emigration. Population is increasing when sum of birth rate and immigration is greater than the sum of death rate and emigration. Population is decreasing when the the sum of birth rate and emigration is greater than death rate and immigration.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Organisms and PopulationsSubtopic:Populations
⏱ 2mℹ️ Source: PYQ_2020
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