A feature associated with the Y-chromosome in human is

A. long eyelashes

B. prominent fingernails

C. facial hairs

D. enlarged breast

The type of reproduction that leads to variation animal and plant population is

A. budding

B. sexual

C. vegetative

D. asexual

An insect with a mandibulate mouth part will obtain its food by

A. biting and chewing

B. chewing and sucking

C. chewing

D. sucking

An argument against Lamarck's theory of evolution is that

A. disuse of body part cannot weaken the part

B. disused part is dropped off in the offspring

C. acquired traits cannot be passed on to the offspring

D. trait cannot be acquired through constant use of body parts

The presence of sunken stomata and the folding of leaves are adaptations to

A. Prevent entry of pathogens

B. Reduce water loss

C. Remove excess water

D. Prevent guttation

Spines and shells on animals are adaptation for

A. camouglage

B. chemical defence

C. physical defence

D. mimicry

An example of cryptic colouration is the

A. Mottled colours on the moths that rest in lichens

B. bright colour of an insect pollinated flower

C. Green colour of a plant

D. Bright marks on poisonous tropical frog on veriegated leaves

Which of the following requires the use of carbon dating to prove that evolution has occurred?

A. Comparative anatomy

B. Biochemical similarities

C. molecular records

D. Fossil records

The inactive state exhibited by an animal during hot dry seasons is termed

A. Aestivation

B. Dormancy

C. Resting

D. Hibernation

In the egg of a bird, the embryo is located in the

A. Yolk

B. Embryo disc IV

C. Chalaza

D. Albumen