A fruit formed from one flower with many carpels is referred to as
- A. simple
- B. multiple
- C. aggregate
- D. false
Which of these pair of substances must be present for a seed to germinate in a laboratory set-up?
- A. microbes and water
- B. heat and water
- C. soil and manure
- D. heat and microbe
The first organism evolved from which of the following habitat?
- A. terrestrial
- B. arboreal
- C. aquatic
- D. desert
Ecological succession can result from
- A. newly formed habitat
- B. habitat with abundant food
- C. habitat with space and light
- D. population of plants on a fertile land
Bryophyte is an intermediate group between higher algae and
- A. thallophyte
- B. pteridophyte
- C. spermatophyte
- D. tracheophyte
The transmission of diseases through contamination of food is an economic importance of
- A. mosquitoes
- B. cockroaches
- C. butterflies
- D. bees
The type of variation where there are no remarkable differences between the two extreme individuals is called
- A. continuous variation
- B. morphological variation
- C. physiological variation
- D. discontinuous variation
One of the following is an example of discontinuous variation
- A. shape of the head
- B. blood group
- C. body complexion
- D. pointed nose
A medium texture soil with high organic matter is
- A. clay
- B. loamy
- C. humus
- D. sandy
Bile is a greenish alkaline liquid which is stored in the
- A. gall bladder
- B. liver
- C. stomach
- D. pancreas
Use the diagram above to answer the question that follows
The diagram above is
- A. circulatory system
- B. reproductive system
- C. urinary system
- D. nervous system
The total number of ATP produced during glycolysis is
- A. 3 molecules
- B. 2 molecules
- C. 4 molecules
- D. 6 molecules
Which of the following structures enables the exchange of gases in insects?
- A. skin
- B. tracheae
- C. Malpighian tubules
- D. flame cell
Use the diagram above to answer the question that follows
The zone labelled II is called
- A. supra-tidal zone
- B. pelagic zone
- C. littoral zone
- D. benthic zone
One main feature of trees in the savanna habitat is the possession of
- A. large, leathery leaves
- B. straight slender stems with branches near the top
- C. thin, smooth barks
- D. thick, corky bark
Inbreeding is highly discouraged in humans because it may
- A. increase the death rate of new born
- B. lead to the birth of dwarfs
- C. lead to high rate of competition among offspring
- D. lead to outbreak of hereditary diseases
In a cross involving a heterozygous red flower plant (Rr) and a white flowered plant (rr). What is the probability that the offspring will be Rr?
- A. \(\frac{1}{2}\)
- B. 1
- C. 2
- D. \(\frac{1}{4}\)
The changes of living organisms over generation is referred to as
- A. human evolution
- B. organic evolution
- C. physical evolution
- D. chemical evolution
The part of the inner ear that is responsible for hearing is
- A. sacculus
- B. cochlea
- C. utriculus
- D. ampullae
The web-feet of frogs and toads is basically for
- A. leaping
- B. walking
- C. swimming
- D. mating
Mouth part adapted for piercing and sucking is found in
- A. housefly
- B. grasshopper
- C. mosquito
- D. cockroach