i 2/2, c 1/1, pm 2/2, m 3/3 The above dental formula represents the dentition of
- A. cow
- B. dog
- C. man
- D. rabbit
- E. sheep
Which of the following is NOT a family planning method?
- A. abstinence
- B. contraceptive device
- C. masturbation
- D. sterilization
- E. use of condoms
The excretory organ of earthworms is known as
- A. contractile vacuole
- B. flame cell
- C. malphigian tubule
- D. nephridium
- E. kidney
The process by which some organisms oxidize inorganic compounds to obtain energy is known as
- A. catabolism
- B. chemosynthesis
- C. glycolysis
- D. metabolism
- E. photosynthesis
The following are major groups of the plant kingdom EXCEPT
- A. Bryophyta
- B. Chiorophyta
- C. Pteridophyta
- D. Spermatophyta
- E. Thallophyta
Which of the following is NOT true of enzymes?
- A. Their reactions are reversible
- B. Their reactions are irreversible
- C. They remain unchanged after the reaction
- D. They are affected by high temperatures
- E. They have active sites
The association between guinea worm and tissues of man is called
- A. commensalism
- B. parasitism
- C. predation
- D. Saprophytism
- E. Symbiosis
Which of the following factors affect population?
- A. competition and natality rate
- B. heat and space
- C. food and mortality rate
- D. Space and competition
- E. Water and light
When a plant shows reddish leaves, the soil is deficient in
- A. calcium
- B. iron
- C. nitrogen
- D. phosphorus
- E. sulphur
Which is NOT a viral disease?
- A. chicken pox
- B. common cold
- C. measles
- D. poliomyelitis
- E. tuberculosis
The hormones produced in the hypothalamus are
- A. auxin and somatotropium
- B. oxytocin and vasopressin
- C. parathormone and progesterone
- D. testosterone and insulin
- E. thyroxine and nor-adrenalin
Oxygenated blood from the lungs is carried to the left atrium of the heart through the
- A. portal vein
- B. pulmonary artery
- C. pulmonary vein
- D. renal artery
- E. superior vena cava
The autonomic nervous system comprises of the
- A. brain and spinal cord
- B. brain and nerves
- C. dendrite and axon
- D. spinal cord and neuron
- E. sympathetic and parasympathetic systems
An example of an exoskeletal structure is
- A. femur
- B. scapula
- C. shell
- D. skull
- E. tibia
Which is NOT a living thing?
- A. bacteria
- B. fern
- C. fungi
- D. protozoa
- E. virus
Herbicides are agricultural chemicals that
- A. encourage growth of weeds
- B. Increase the soil fertility
- C. improve disease resistance of crop
- D. suppress crop growth
- E. suppress weed growth
In the nucleus of a cell, the thread-like structure in which genes are embedded is
- A. centriole
- B. chromosomes
- C. cytoplasm
- D. somatic cell
- E. spindles
Use the data to answer this question
A class of 40 set out to determine the population of lizards in a bound field measuring 200 metres by 100 metres using the capture-recapture method.
In their first outing, the students captured a total of 360 lizards all of which were marked with indelible ink and then released back into the field.
After a one week interval the students went back into the field and caught a total of 250 lizards out of which 150 bore the indelible ink mark.
The population density of the lizards in the field is?
- A. 0.003 per m 2
- B. 0.03 per m 2
- C. 3 per m 2
- D. 4 per m 2
- E. 6 per m 2
The sum total of all the roles an organism plays in a habitat is referred to as its
- A. ecology
- B. ecosystem
- C. habit
- D. habitat
- E. niche
Which climatic feature is NOT commonly found in Nigeria?
- A. flooding
- B. harmattan
- C. heat intensity
- D. rainfall
- E. volcanic eruptions
What can be used to collect soil animals?
- A. Insect net
- B. plankton net
- C. pooter
- D. quadrat
- E. Tullgren funnel