Question 1 of 20 2,099 total questions
The process whereby poisonous compounds are made harmless in the liver is called
A deamination
B glycolysis
C dehydration
D detoxification
E denitritication
Mutation leads to evolution in that it
A gives rise to offspring which have the same characteristics as the parents
B kill all organism where it has occurred
C gives rise to new individuals which differs considerably from their parents
D always confers adaptability of the offspring
E does nit confer adaptability to the offspring
The part of the ear which equalizes air pressure on either side of the eardrum is
A auditory meatus
B malleus
C Eustachian tube
D oval window
E stapes
The following conditions form the basis of competition in a habitat except
A food
B space
C reproductive mate
D light
E body structure
Which of the following factors does not control population growth?
A Food shortage
B Emigration
C Abundance of food
D Predation
E Natural disaster
Which of these is not part of the appendicular skeleton?
A Clavicle
B Vertebral column
C Scapula
D Femur
E Humerus
What is the theoretical probability that a normal male child will be born?
Which of the following determines a normal male offspring?
In their system of organisation, the diagram labelled II plays the role of a
A worker
B soldier
C queen
D drone
E reproductive
The diagrams above represent a group of insects known to be
A colonial
B parasitic
C soldier
D carnivorous
E symbiotic
What is the fate of the ovary of a flower after fertilization?
A becomes the seed
B withers away
C becomes the fruit
D develops more nuclei
E develops into sepals.
The ability of the eye to alter the focal length of the lens, with regard to the distance of the object from
A binocular vision
B nocturnal vision
C distortion
D accommodation
E focusing
Muscles are attached to bones by means of
A ligament
B cartilage
C capillaries
D tendons
E arteries
The structure used by fishes to detect the presence and movement of other animals
A eye
B nostril
C lateral line
D scales
E fins
Which of the following agents is responsible for the dispersal of the seed shown above?
A man
B Water
C Wind
D Explosive mechanism
E Animal
Which of the following relationships illustrates competition?
A Cattle egret moving along with cattle
B Goats and cows grazing on a small grass lawn
C Mosses succeeding lichens in a rocky terrain
D Red mangrove swamp dying and replaced by white mangrove
E Forest trees, shrubs and grasses replacing white mangrove in a swamp
Which of the following represents the correct order in a possible food chain?
A Crustacean -> diatom -> fish -> man
B Fish -> crustacean -> man -> diatom
C Man -> fish -> crustacean -> diatom
D Diatom -> crustacean -> fish -> man
E Man -> diatom -> fish -> crustacean
Which of the following performs the same function as the contractile vacuole of a unicellular organism?
A Kidney
B Alimentary canal
C Liver
D Pancreas
E Bladder
The morphological, physiological and behavioural characteristics which enable an organism to survive in
A heredity
B ecology
C competition
D adaptation
E variation
Which of the following can cause desert encroachment?
A Afforestation
B Irrigation
C Planting of trees
D Establishment of game reserve
E Overgrazing
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