Question 1 of 20 2,099 total questions
Muscles are attached to bones by means of
A tendons
B ligaments
C cartilage
D nerves
Rural-urban migration in developing countries can be prevented by
A increasing the number of years in school
B putting up more factories in urban areas
C having boarding schools in rural areas
D even distribution of facilities in both regions
The following are greenhouse gases except
A carbon dioxide
B chlorofluorocarbon
C methane
D oxygen
Which of the following factors is the main problem facing xerophytic plants?
A Competition for sunlight
B Conservation of excess water
C inadequate roots for water absorption
D Lack of adequate water
A moss plant can withstand drought by means of its
A spores
B rhizoids
C antheridia
D achegonia
Which of the following is a biotic component of an ecosystem?
A Soil
B Rainfall
C Light
D Fungi
The speed of wind is measured using the
A wind vane
B anemometer
C photometer
D barometer
The distribution of organisms in a fresh water habitat like a stream or pond is determined by the following
A light penetration
B pH of the soil
C rainfall
D temperature
In a particular habitat the role of an organism is referred to as its
A level
B biomass
C niche
D space
An herbivore cannot feed on a piece of meat because it has no
A incisors to out the meat
B canines to tear up the meat
C premolars to grind the meat
D molars to mash the meat
The bacterium in a mutualistic association with legumes converts
A nitrates to ammonia
B ammonium compounds to nitrites
C nitrogen gas to ammonia
D nitrites to nitrates
Which of the following pH values is the best for the action of the enzymes - renin and pepsin in the
Which of the following food substances is incorrectly linked to its enzyme?
A Protein - trypsin
B Fat - lipase
C Sucrose - pepsin
D Starch - amylase
In testing for starch in a leaf, the leaf is first boiled in water for about a minute so that the
A cell walls are hardened
B cells are killed
C chlorophyll is dissolved out
D iodine will penetrate
A man suffering from obesity must avoid meals containing
A margarine and butter
B rice and beans
C carrots and oranges
D beef and fish
In which of the following organic compounds is the hydrogen-oxygen ratio equal to 2:1?
A Proteins
B Carbohydrates
C Lipids
D Vitamins
The following are the major reasons why the butterfly lays eggs under the surface of a leaf except to
A shade the eggs from the direct rays of the sun.
B protect the eggs from predators
C protect the eggs from being washed away by rain drops
D camouflage the eggs
Transportation of water in the xylem tissue involves the following except
A root pressure
B capillary action
C transpiration pull
D translocation
Which of the following statements ls true about transpiration? It is the
A loss of water in the form of vapour from the surface of the’ leaf
B loss of water in the form of vapour from the surface of the root
C absorption of water in the form of vapour from the body of the pint
D movement of water through the body of the plant.
The part labelled III is the
A albumen
B chalaza
C yolk
D air space
Next
Question Navigator
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
