The experimental set-up can be used to demonstrate that

A. light is necessary for photosynthesis

B. oxygen is necessary for photosynthesis

C. photosynthesis occurs in the leaves of plants

D. carbon (IV) oxide is necessary for photosynthesis

When a marine fish was taken from the ocean and put in a tank of fresh water, it died after a short period because

A. the tank was too small compare to the large ocean

B. the body cells of the fish swelled and burst as a result of the hypotonic fresh water

C. the body cells of the fish shrank as their sap was hypertonic to the fresh water

D. there was no food in the tank, so the starved.

Which of the following pairs of organ is located in the anterior half of the mammalian body cavity?

A. Kidneys and lungs

B. Heart and ovary

C. Lungs and heart

D. Kidneys and heart

The mode of nutrition exhibited by a tapeworm is

A. symbiotic

B. saprophytic

C. parasitic

D. holozoic

The organ located within the duodenal loop in the mamal is the

A. spleen

B. pancreas

C. liver

D. gall bladder

In which of the following groups of fruits is the pericarp inseparable from the seed coat?

A. Nut

B. Follicle

C. Cypsela

D. Crayopsis

A person that is obese must avoid meals containing

A. `carrots and oranges

B. margarine and butter

C. beaf and beans

D. rice and yam

Tissue respiration is important for the

A. absorption of oxygen into the alveoli

B. release of carbon (IV) oxide into the lungs

C. release of energy for the body use

D. exhalation of carbon(IV) oxide from the lungs

The function of the absorption is performed by the structure labelled

A. I

B. II

C. III

D. IV

The structure labelled I represented the

A. phloem

B. xylem

C. cortex

D. pericycle