Intrinsic Rate of Natural Increase — NEET Biology
📚 Practice ConceptThe r in this equation is called the 'intrinsic rate of natural increase' and is a very important parameter chosen for assessing impacts of any biotic or abiotic factor on population growth.
Which of the following statements regarding population attributes and growth are correct? S1. The intrinsic rate of natural increase (r) is a crucial parameter for assessing impacts of biotic and abiotic factors on population growth. S2. In a newly colonized habitat, immigration typically contributes more significantly to population growth than birth rates. S3. Population density is always best measured by total numbers, as it is the most appropriate and easily adoptable measure for all species. S4. The Verhulst-Pearl Logistic Growth model shows an exponential phase initially, followed by a lag phase, then deceleration. S5. If population density N at time t is 20, birth rate (b) is 0.4, death rate (d) is 0.1, and there are no immigration or emigration, then dN/dt is 6.
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