Question 1 of 20 153 total questions
Which is NOT an effect of the food shortage on a population?
A Cannibalism
B Competition
C Increase in mortality
D Increase in natality
E migration
Which is the most ecologically viable method of insect pest control?
A Draining all stagnant pools of water
B Eliminating one of the development stages of the insect
C Employing a lot of labourers to physically handpick the insect pests
D Erecting physical barriers against insect pests
E Using stronger insecticides which can kill a greater number of insect.
Bacteria; which derive energy by oxidizing certain inorganic compounds, are said to be
A Chemosynthetic
B Holozoic
C Parasitic
D Photosynthetic
E Saprophytic
Which part of the brain regulates and co-ordinates muscular movements?
A Cerebellum
B Cerebrum
C Hypothalamus
D Medulla oblongata
E ThaIamus
The cell organelle, from which spindle fibers originate during cell division in animal cells is known as
A Centrosome
B Chromosome
C Leucoplast
D Lysosome
E Ribosome
The blood vessel that supplies blood rich in digested food to the liver is the
A Hepatic artery
B Hepatic portal artery
C Hepatic portal vein
D Hepatic vein
E Renal artery
Which of the following animals exhibits territoriality?
A Bees
B Bats
C Lizards
D Rabbit
The character that expresses itself in the presence of the contrasting characters
A hybrid
B allele
C recessive
D dominant
Which of the following variations is applicable to a weight lifter?
A Continuous variation
B Discontinuous variation
C Hereditary variation
D Acquired variation
Use the human characteristics to answer this question.
A I and II only
B I, II and IV only
C I, III and IV only
D I, II and III only
I. Complexion II. Height III. Blood Rh factor IV. Colour blindness
A I and III only
B II and III only
C II and IV only
D III and IV only
In medicine, bacteria have proved very useful due to the production of
A nitrate
B antibiotics
C cured tobacco
D tanned leather
Fresh milk is often kept in refrigerated vehicles, for distribution to customers in order to
A ensure proper share of fresh milk to all customers.
B ensure delivery of milk to customers in good time
C improve the quality of the milk
D ensure that the milk is presented for a longer period
Which of these is a vector of malaria fever?
A Female anopheles mosquito
B Male anopheles mosquito
C Female culex mosquito
D Male culex mosquito
Which of these is not correct about the tse-tsefly and mosquito? They
A harbour protozoa as disease agents
B possess piercing and sucking mouth parts
C have intermediate hosts
D inject disease- causing organisms into the blood stream
Which of the following structures in a housefly aids in the transmission of diseases in man?
A Hairs
B Spiracles
C Antennae
D Wings
Which of the following groups of factors do the Agama lizards compete for? I. Space II. Food III. Mates
A Space and food only
B Space and mates only
C Food and mates only
D Space, food and mates
Which of the following associations can upset the balance of nature?
A Epiphitism
B Parasitism
C Symbiosis
D Saprophytism
The substances recycled in the soil by the activities of micro-organisms during the decay of dead organisms
A carnivores
B herbivores
C scavengers
D autotrophs
Micro-organisms which break down dead organisms and absorb their contents are called
A decomposers
B consumers
C parasites
D commensals
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