Question 1 of 20 50 total questions
An organism at the start of a food chain which provides the total input energy into an ecosystem is the
A sun
B producer
C consumer
D decomposer
The capillarity of a soil refers to
A the particle size of soil
B how easily water passes through soil
C how well water rises up in soil
D proportion of water a soil holds
The major problem experience by organisms living in small water bodies is
A drying up
B oxygen deficiency
C scarcity of food
D wave action
Study the diagram above and answer the question.
A an increase in urine production
B an increase in energy production
C a decreased population
D decreased immunity
Plant A was seen to appear as Plant B after seven hours
A low humidity and low temperature
B high humidity and low temperature
C low humidity and high temperature
D high humidity and high temperature
Plant A was seen to appear as Plant B after seven hours
A wilting
B competition
C transpiration
D Osmosis
The type of placentation illustrated in the diagram above is
A marginal
B perietal
C axile
D basal
The illustration above represents a cross between a colour blind male and normal female.
A 1 and 11 only
B 1 and 111 only
C 11 and 111 only
D 1, 11 and 111 only
The illustration above represents a cross between a colour blind male and normal female.
Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
A exhaust from cars
B oil spillage
C dumping of sewage
D excess rainfall
Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
A denitrification
B conservation
C eutrophication
D global warming
Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
A root nodules of legumes
B cloud
C fertilizers
D organic matter
The inability of an organism to adapt to its habitat can lead to
A dormancy
B adaptation
C extinction
D survival
In which of the following insects is group instinct not displayed?
A Solder ants
B Cockroaches
C Honey bees
D Termites
Which of the following terms is associated with natural selections?
A adaptive radiation
B Differential reproduction
C Population variability
D Survival of the fittest
Which of the following scientists did not contribute to the development of genetics?
A Wilhem Johannsen
B Felix Durjadin
C Thomas Morgan
D Gregor Mendel
Scientists who study genetics are known as
A genealogist
B geneticist
C mendalists
D genescientists
A cross between two parents produced four offspring's with blood groups AB, BB, BO and AO. what is the blood group of their parents?
A AA and BO
B BB and AO
C AB and BO
D AB and AO
A sick baby was successfully transfused with blood from the father who has blood group AB.
A blend of inherited and acquired characteristics shows
A variation
B inheritance
C evolution
D heredity
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