Which of the following group does NOT reproduce asexually?

A. Mucor, Spirogyra and Paramecium

B. Penicillium, Paramecium and Amoeba

C. Mucor, Rhizophus and Penicillium

D. Amoeba, Spyrogyra and Mucor

E. Rhizophus, Ascaris and Amoeba

Fehling's solution will readily change colour from blue to reddish colour when it is

A. mixed with sugar solution in the cold

B. warmed or heated by itself

C. mixed with reducing sugar in the cold

D. warmed or heated with complex solution

E. warmed with a solution of reducing sugar

The presence of a diastema in the jaw bone indicates that the mammal lacks the teeth suitable for

A. tearing

B. chewing

C. cutting

D. chewing and tearing

E. cutting and grinding

Normally the flow of blood is NEVER from

A. artery to arterioles

B. arterioles to capillaries

C. capillaries to venules

D. arteerioles to the artery

E. venules to the vein

Heat produced in tissue respiration in plants is

A. a chemical form of energy

B. the only form of energy

C. the main form of energy

D. a useful form of energy

E. a waste form of energy

The axial skeleton of a mammal does not include the bones of the

A. skull

B. tail

C. limbs

D. back

E. neck

Which of the following sequences represents process of blood clothing? 1. Fibrins forms a network of threads 2. Red blood cells are caught and clot is formed 3. Fibrinogen in plasma changes into fibrin 4. Blood is exposed to air

A. 4, 3, 2, 1

B. 4, 3, 1, 2

C. 3, 1, 4, 2

D. 1, 2, 3, 4

E. 3, 1, 2, 4

Green plants are important in the ecosystem because they are

A. primary consumers

B. producers

C. decomposers

D. secondary consumers

E. scavengers

An anemometer is an instrument for measuring

A. relative humidity

B. altitude

C. wind speed

D. turbidity

E. salinity

Which of the following is NOT regarded as a pollutant on land or in the air?

A. smoke

B. noise

C. sulphur (IV) oxide

D. carbon monoxide

E. nitrogen