Question

A small, isolated population:
A. will do extremely well if protected.
B. is unlikely to survive, even within a reserve
C. will grow, but extremely slow
D. will given the right condition

Answer 1

Hint: In order to answer such a question you should have a brief idea about what population means and what are its ecological roles. Conditions like genetic drift are prevalent in a group of small populations only.


Complete step by step solution:
A population is the entire set of people in a group, whether that group is a country or a collection of people who share a certain trait. Population dynamics and how species populations interact with their environments through factors like birth and death rates, immigration and emigration, are the focus of the subfield of population ecology in ecology. In ecology, a population's members may be dispersed in one of three ways: uniformly, randomly, or clumped.
Determinants of Population Size- Seasons, abiotic factors, food availability, competition between species, competition within a single species,  predation, disease and parasitism.
Due to natural selection and genetic drift, a small isolated population is most likely to experience speciation or a substantial change in their gene pool. Inbreeding and genetic drift are the main ways that small, isolated populations lose genetic variety over time. If inbreeding depression affects demographic performance, this may further raise the danger of extinction.
So, option (B) is correct.

Note:
 The birth rate (b) and mortality rate are the two primary variables influencing population increase (d). People leaving the population to move to another location or immigrating from somewhere else may also have an impact on population increase emigration (e).