Question

Those species whose populations have been seriously depleted and whose ultimate security is not assured are known as

• A. Threatened species
• B. Endangered species
• C. Vulnerable species
• D. Rare species

Answer 1

Answer: (B)

Endangered species

A) A species which is vulnerable to endangerment in the near future is known as Threatened species.

B) A species which is very likely to become extinct is known as endangered species.

C) A vulnerable species is a species which is likely to become endangered unless the circumstances which are threatening its survival and reproduction improve.

D) A rare species is a species that is very uncommon, scarce, or infrequently encountered.

So, the correct answer is 'Endangered species'.