Biology Past Questions And Answers
Trees in savannah habitats usually have heavy thick bark which mainly
- A. reduces the rate of transpiration
- B. protect them from the scorching sun
- C. protect them from heavy winds
- D. resist bush tires
Th chitin in the exoskeleton of many arthropods is strengthened by
- A. calcium compounds
- B. organic salts
- C. lipids
- D. proteins
In natural selection, Darwin proposed that evolution occurred because of the following conditions except
- A. that nature selects those that will survive to reproduce their kind
- B. there is a fierce competition among the offspring
- C. that the weaker offspring are eliminated
- D. food and other needs are abundant
Interest on a partner's drawings is debited to the
- A. Partners current account and credited to the profit and loss appropriation account
- B. profit and loss appropriation account and credited to the partner's current account
- C. profit and loss account and credited to the partner's current account
- D. Partner's current account and credited to the profit and loss account
The hair on the human skin will stand erect when the person is
- A. in an air-conditioned room
- B. strolling in the sun
- C. taking a hot drink
- D. doing strenuous exercise
Which of the following is not an organ?
- A) leaf
- B) heart
- C) kidney
- D) bone
A person had an accident that affected the skull but not the nose and later lost the sense of smell. The accident must have a affected the
- A. nose by extension
- B. olfactory lobes of the brain
- C. passage from the nose to the brain
- D. part of the skull near the nose
In which type of speciation does a new species evolve from an ancestral species while inhabiting the same area as the ancestral species?
- A. Allopatric
- B. Sympatric
- C. Convergent
- D. Peripatric
Which of the following organisms is not a protozoan?
- A. Amoeba
- B. Ascaris
- C. Plasmodium
- D. Paramecium
An example of a poikilothermic organism is a
- A. Lizard
- B. Cockroach
- C. rabbit
- D. bird