The biological factor that is unique to each individual is the

A. DNA

B. eye colour

C. blood group

D. RNA

From evolutionary standpoint , the older a fossil-bearing rocks is, the more likely it is to contain

A. aves as opposed to amphibians

B. invertebrates as opposed to vertebrates

C. angiosperms as opposed to algae

D. vertebrates as opposed to invertebrates

The very bright colours in some types of mushroom

A. are warning that they may be poisonous

B. indicate they are very taste

C. attract potential transporters of the spores

D. perform the same function as bright colours in flowers

The least adaptive feature of aboreal life is the

A. possession of fouur limbs

B. possession of claws

C. development of long tail

D. shading of coat colour

Which of the following is one of Lamarck's theories?

A. Some variations are more favourable to existence in a given environment than others

B. All living organisms are constantly involved in a struggle to existence

C. The size of a given population remains fairly constant

D. New species originates through the inheritance of acquired traits

The loud cry made by a brooding hen when a predator is around is meant to

A. alert the poultry attendants

B. attract cocks to come and fight the predator

C. advertise the boundaries of its territory to intruders

D. warn its chicks and other chickens of impending danger

The most important environment factor which epiphytes in the rain forest compete for is

A. water

B. nutrients

C. light

D. cabinet minister

E. space

The habitat of the cysticercus of taenia solium is

A. Alimentary canal of cattle

B. Muscles of pig

C. Alimentary canal of pig

D. Muscles of cattle

The biomass is likely to increase in the sequence

A. 1→2→4→5

B. 1→3→4→5

C. 3→5→6→7

D. 5→4→3→1

Primary consumers are found in

A. 1, 2 and 3

B. 1, 3 and 7

C. 2, 3 and 7

D. 2, 4 and 5