For growth to occur in organisms, the rate of
- A. anabolism must exceed that of catabolism
- B. catabolism must exceed that of anabolism
- C. food storage must be low
- D. food storage must be high
Vaccination is carried out in order to
- A. check the production of poison
- B. increase the activities of white blood cells
- C. increase the number of red blood cells
- D. stimulate the production of anti-bodies
Floating microscopic heterotrophs are mostly grouped as
- A. phytoplankton
- B. zooplankton
- C. microbes
- D. nekton
The biological association that contributes directly to succession in a community is
- A. competition
- B. predation
- C. parasitism
- D. commensalism
A group of organism of different species living in a particular area is described as a
- A. colony
- B. community
- C. population
- D. niche
The ability of the eyes to focus on both near and distance objects is termed
- A. image formation
- B. refraction
- C. hypermetropia
- D. accommodation
The process of walking is under the control of the part of the brain called
- A. optic lobe
- B. olfactory lobe
- C. cerebellum
- D. medulla oblongata
In which of the following vertebrates does the skin function as a respiratory surface
- A. rat
- B. lizard
- C. fish
- D. frog
The excretory structure in the earthworm is the
- A. malphighian tubule
- B. flame cell
- C. nephridium
- D. kidney
Use the diagram to answer the question
The neural arch is labelled
- A. i
- B. ii
- C. iii
- D. iv
Use the diagram to answer the question
The vertebra illustrated is
- A. lumber
- B. thoracic
- C. caudal
- D. cervical
Which of the following waste products in plants is excreted through the stomata and lenticles?
- A. carbon dioxide
- B. alkaloids
- C. tannins
- D. anthoocyanins
The process by which a red blood cell placed in distilled water absorbs water until it burst and realease it’s content into the surrounding is known as
- A. osmosis
- B. plasmolysis
- C. turgidity
- D. hemolysis
The smallest living organism which share the characteristics of both living and non-living matter are
- A. bacteria
- B. fungi
- C. viruses
- D. protozoa
Which of the following instruments is NOT used in measuring abiotic factors in any habitat?
- A. microscope
- B. thermometer
- C. hygrometer
- D. windvane
What is the term used to describe biotic and abiotic factors in the environment of the organism?
- A. habitat
- B. biome
- C. ecosystem
- D. ecological niche
The bright colours of the comb and feathers in the peacock are for?
- A. sex differentiation
- B. beauty
- C. courtship
- D. defence
The butterfly is of great economic importance because
- A. of it's use in scientific studies
- B. it sucks nectar from flowers
- C. it adds to the beauty of the environment
- D. it pollinates flowers of crops and other plants
The villus in the small intestine is significant because
- A. Increases the surface area for absorption
- B. increases the surface area for digestion
- C. assists in mixing digested food
- D. assists in filtering undigested food
In which of the following does external fertilization take place?
- A. toad
- B. lizard
- C. bird
- D. cockroach
The function of ribosome in cells is
- A. protein synthesis
- B. starch synthesis
- C. transport of material
- D. lipid storage