IGCSE Biology Paper-2: Specimen Questions with Answers 55 - 57 of 203

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Question 55

Question

MCQ▾

The diagram shows a food chain.

Which is first trophic level in given diagram

Choices

Choice (4)

a.

Carnivore

b.

Herbivore

c.

Producer

d.

Omnivore

Answer

c.

Explanation

The trophic level of living organism is the position it occupies in a food chain. It start with producers, called as first trophic level. After this, herbivores will be in second trophic level. Then carnivores will be in third trophic level.

Question 56

Question

MCQ▾

The circulation of some gases and elements is known as

Choices

Choice (4)

a.

Geothermal cycle

b.

Biological cycle

c.

Biogeochemical cycle

d.

Chemical cycle

Answer

c.

Explanation

Biogeochemical cycling of compounds is a pathway by which a chemical substance moves in both biotic and abiotic compartments of Earth.

Question 57

Question

MCQ▾

Which is not the part of digestive system?

Choices

Choice (4)

a.

Stomach

b.

Mouth

c.

Heart

d.

Esophagus

Answer

c.

Explanation

Digestive system is a process in which breakdown of food into smaller and smaller components occur, which can be absorbed and assimilated into the body. Main parts of digestive system are mouth, throat, esophagus, Stomach, small intestine, colon, rectum and anus. Heart is not the part of digestive system.

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