Answer: Very small population of tamarind monkeys are much more threaded by certain diseases than are very large populations of tamarind monkeys because (C) large population most likely have greater genetic diversity.
A small population has a lesser degree of genetic diversity than a large population, which makes the small population less resistant to certain diseases. In other words, as a large population includes more monkeys, there will be more monkeys carrying the gene to resist diseases. A small population is more likely to be affected by a stochastic sampling error, which is a genetic drift that results in the absence of a gene flow. Furthermore, a small population is generally characterized by a reduced population growth rate, which makes it more vulnerable to diseases and, therefore, to extinction.
