the algebraic expression dN/dT=riN expresses what?
a. biotic potential
b. population density
c. carrying capacity
d. demographic structure
e. gause principle
is it B?
To determine the correct answer, let's break down the given algebraic expression:
dN/dT = riN
In this expression, dN/dT represents the rate of change of population size with respect to time. N represents the population size at a given time. The parameter "r" represents the per capita growth rate of the population, and "i" represents the initial population size.
Now, let's analyze the options:
a. Biotic potential: Biotic potential refers to the maximum reproductive capacity of a population under ideal environmental conditions. While the content of the expression involves population growth, it does not specifically address maximum reproductive capacity. Therefore, option a is not correct.
b. Population density: Population density refers to the number of individuals per unit of area or volume. Although the expression includes population size and growth rate, it does not directly measure population density. Hence, option b is not the correct answer.
c. Carrying capacity: Carrying capacity represents the maximum population size that a particular environment can sustain over a period of time. The given algebraic expression does not explicitly mention carrying capacity. Therefore, option c is not correct.
d. Demographic structure: Demographic structure refers to the composition of a population in terms of age, sex, and other characteristic features. The given expression does not relate to demographic structure. So, option d is not the answer.
e. Gause principle: Gause's principle, also known as the competitive exclusion principle, states that two species with similar ecological niches cannot coexist indefinitely in the same environment. The given expression does not relate to Gause's principle. Therefore, option e is not correct.
Based on the explanations above, the correct answer is not b.