Biology

In complex food relationships in a community, the primary, secondary and tertiary consumers are referred to as?

A. symbionts B. omnivores C. heterotrophs D. autotrophs E. carnivores Correct Answer: Option C - heterotrophs

6 years ago

Higher organisms use a transport system and not diffusion only to distribute nutrients because?

A. the ratio of their surface area to volume is small B. metabolic waste products diffuse to the surface of…

6 years ago

Which of the following is not a tissue found in plants?

A. Epidermis B. Phloem C. Xylem D. Dermis E. Mesophyll Correct Answer: Option D - Dermis

6 years ago

Which of the following pairs of tissues is responsible for strengthening the plant?

A. Phloem and Epidermis B. Parenchyma and Cambium C. Collenchyma and Sclerenchyma D. Collenchyma and Cambium E. Xylem and Cambium…

6 years ago

Which of the following statements is correct about skeleton?

A. biceps muscles has its origin on the head of the humerus B. biceps muscle is inserted at the ulna…

6 years ago

Which of the following groups carry out similar functions in living things?

A. Vertebral column, chitin, and guard cells B. Sclerenchyma, cartilage and chitin C. Tendon, chitin and neurone D. Collenchyma, Intercellular…

6 years ago

Carbondioxide enters the stomata during photosynthesis through the process known as?

A. osmosis B. active transport C. diffusion D. inhalation E. ventilation Correct Answer: Option C - diffusion

6 years ago

One of the differences between plant and animal cells is that in plants?

A. cells have less distinct outline, but animal cells have distinct outline B. ell wall is made of cellulose, but…

6 years ago

Which of the following organisms is one-celled and free-living?

A. Volvox B. Spirogyra C. Rhizopus D. Chlamydomonas E. Hydra Correct Answer: Option D - Chlamydomonas

6 years ago

Which of these could be regarded as an advantage of complexity in higher organisms?

A. there is no cellular differentiation B. Cellular differentiation leads to loss of independence of the cells C. Complexity stops…

6 years ago