Question 1 of 20 5,032 total questions
Which of the following instruments is used to measure wind speed?
A Thermometer
B Barometer
C Hygrometer
D Anemometer
Which of the following physical actors is likely to affect the distribution of plants in a pond?
A light
B Humid
C Wind
D Temperature
A community is best described as
A living things in a habitat interacting with the non-living part of the environment
B the total number of individuals of one species of organisms living in a particular habitat
C populations of different species living together and interacting with each other in one habitat
D the individuals of a particular group living together in an area and sharing the same resources
The impedance of the concentration of chloroplast in the palisade layer of the leaf is for maximum exposure to
A carbon dioxide
B light
C water
D oxygen
Filaments of Spirogyra placed in a beaker of water in a dark cupboard died because
A the filaments could not photosynthesize
B conjugation could not take place
C the temperature was too high
D the plant was overflooded
Analysis of the gut content of an animal showed that it contained small pieces of bone, seeds. roughages and insects. The animal is likely to be a/an.
A carnivore
B herbivore
C insectivore
D omnivore
Which of the following food substances gives the least amount of calories?
A Rice
B Groundnuts
C cabbage
D Egg yolk
An example of a dehiscent fruit is
A crotolaria
B tomato
C mango
D orange
The part of the young root that pushes its way through the soil is the
A root hair
B tap root
C root cap
D lateral root.
The process by which flowers produce fruit without the process of fertilization is called
A viviparity
B parthenocarpy
C propagation
D metamorphosis
The eyes can properly focus images of objects of various distances on the retina by a process called
A refraction
B reflection
C accommodation
D correction
Which of the following processes is not an example of a reflex ac ion?
A Blinking of the eye
B Reading
C Beating of the heart
D Sneezing
The part of the brain which controls and coordinates body posture is the
A cerebellum
B hypothalamus
C medulla oblongata
D pons varolii
The passage of nerve impulse across a synapse is facilitated by the secretion of
A acetylcholine
B thyroxin
C insulin
D progesterone
Plant hormones include the following except
A insulin
B auxin
C cytokinin
D gibberellin
Which of the following actions is note function of adrenaline? It increases
A body blood sugar by conversion of liver glycogen into glucose
B muscular power and resistance to fatigue
C the rate of heat
D the dilation of the pupils of the eye
Which of the following statements is not true about hormones?
A Hormones are manufactured in ductless glands and poured straight into the blood stream
B Hormones are carried by the blood plasma to the required Target organs
C Hormonal responses are usually instant and electrical
D Once the effects of hormones are over, they are inactivated and excreted from the body
The presence of glucose in the urine of a patent is an indication of malfunctioning of the
A pancreas
B gall bladder
C liver
D spleen
The process of regulating the amount of water and solutes in the body fluids is called
A osmosis
B diffusion
C osmoregulation
D homeostasis
In the adult frog gaseous exchange takes place in the
A buccal cavity, skin and lungs
B buccal cavity, skin and spiracles
C gills, skin and buccal cavity
D tympanic membrane, lungs and gills
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