Biology

When an animal has a dark-coloured dorsal surface and a light-colouration ventral surface, this is an adaptation called?

A. concealment colouration B. countershading C. colour blending D. disruptive colouration Correct Answer: Option B - countershading

4 years ago

When a peacock displays its colourful feathers, it is?

A. ready for a fight B. protecting itself from predators C. protecting its mate from predators D. courting a female…

4 years ago

The association in which one member benefits and the other is relatively unaffected by the interaction is termed?

A. symbiosis B. parasitism C. commensalism D. mutualism Correct Answer: Option C - commensalism

4 years ago

A yellow maize is crossed with a white maize and the first filial generation produce yellow maize only. The white trait is said to exhibit?

A. dominance B. recessiveness C. codominance D. incomplete dominance Correct Answer: Option B - recessiveness

4 years ago

Which of the following is the best explanation for a child who is phenotypically short and born of two tall parents?

A. The father possesses a gene for shortness B. The mother possesses a gene for shortness C. Nature makes the…

4 years ago

A non-renewable alternative source of energy is?

A. wind generator B. solar panels C. nuclear energy D. hydroelectric power Correct Answer: Option C - nuclear energy

4 years ago

The recycling method of solid waste disposal is unsuitable for?

A. organic matter B. glass C. plastic D. metal scraps Correct Answer: Option A - organic matter

4 years ago

The importance of practising crop rotation in agriculture is to?

A. maintain soil fertility B. improve the nutritional value of crops C. control soil erosion D. ensure the growth of…

4 years ago

Which of the following is used to test for the presence of lime in a soil sample?

A. H2SO4(aq) B. NaOH(aq) C. HCl(aq) D. HNO3(aq) Correct Answer: Option B - NaOH(aq)

4 years ago

Secondary succession is much faster than primary succession because?

A. pioneer colonizers are more in number B. soil is already present C. secondary series require less nutrients D. species…

4 years ago