Biology General Knowledge Questions and Answers

The common name of Ascaris is:

(C) Roundworm

Ascaris is a genus of parasitic roundworms, and the common name "roundworm" is often used to refer to these worms. Ascaris lumbricoides is a species of roundworm that commonly infects the intestines of humans. So, the correct answer is (C) Roundworm.

Pneumatic bones, which are bones that are hollow and filled with air sacs, are typically found in birds. The purpose of pneumatic bones is to reduce the overall weight of the bird, aiding in flight.

Among the options provided:

(C) Peacock

Birds like peacocks, being avians, have pneumatic bones. So, the correct answer is (C) Peacock.

A primate is any mammal of the group that includes lemurs, lorises, tarsiers, monkeys, apes, and humans. The order Primates, with its 300 or more species, is the third most diverse order of mammals, after rodents and bats.

The substance that causes the clotting of blood is:

(A) Thrombin

Thrombin is an enzyme that plays a crucial role in the blood clotting process. It is responsible for converting fibrinogen, a soluble plasma protein, into insoluble fibrin threads. These fibrin threads form a mesh that helps in the clotting of blood, particularly at the site of injury or wound. Therefore, option (A) Thrombin is the correct answer.