Question 1 of 20 5,032 total questions
Which of the these is not an excretory product of plant?
A Tannin
B Gum
C Alkaloid
D Sweat
E Anthocyanin
Which of the following does not happen during inspiration?
A intercostal muscles contract
B Ribs move forward
C Thoracic cavity increases
D Diaphragm relaxes
E Internal air pressure decreases
The stomata of a leaf performs the same function as
A spiracles of insects
B trachea of toads
C pharynx of man
D liver of man
E scales of fish
Which of the following organism respires through the body surface
A Man
B Fish
C Tridax
D Amoeba
E Hibiscus
A difference between the auricle and the ventricle of the mammalian heart is that the
A ventricles carry deoxygenated blood
B ventricles do not have outlets
C auricles have no valves
D walls of the ventricles are lese muscular then that of the auricles
E Walls of the ventricles are more muscular than that of the auricles
Which of the following statements about the circulation of blood is not correct?
A Deoxygenated blood flows in the heart through the vena cavae
B Blood is pumped out of the heart through the aorta
C Oxygenated blood from the lung; is carried to the left auricle
D The oxygenated blood enters the lungs through the pulmonary vein
E Ventricles contract to pump blood into the aorta
Which of the following is not a function of the blood?
A Maintenance of body temperature
B Formation of clot
C Distribution of bile
D Transportation of excretory materials.
E Distribution of hormones
The part labelled IV in the diagram is the
A phloem
B pericycle
C cortex
D xylem
E epidermis
The part labelled II in the diagram is the
A epidermis
B cortex
C phloem
D xylem
E cuticle
The above diagram represents a
A longitudinal section of a stem
B longitudinal section of a root
C cross section of a root
D transverse section of stem
E longitudinal section of a leaf
Which of the following is a method of artificial vegetative propagation?
A Creeping stem
B Layering
C Corm
D Rhizome
E Bulbil
Which of the following can be used for vegetative propagation?
A Ginger stem
B Yam leaf
C Plantain roots
D Sweet potato tuber
E Carrot root
Which of the following is a difference between mitosis and meiosis?
A Alignment of chromosomes along the equitorial plane
B Replication of the chromosomes and the cell organelles
C Pairing of homologous chromosomes
D Formation of spindle fibers
E Thickening of chromatin threads at prophase
One major difference between osmosis and diffusion is that diffusion
A does not need a semipermeable membrane
B does not take place in living tissues
C takes place only in a liquid medium
D takes place only in a gaseous medium
E cannot be demonstrated experimentally
Which of the following is not an organ?
A Hair
B Tongue
C Rhizome
D Corn
E Heart
Which of the following organisms exhibits both plant and animal characteristics?
A Amoeba
B Spirogyra
C Mucor
D Euglena
E Moss
The basic point of impact by changes which produce mutation is the
A gametes
B chromosomes
C phenotype
D zygote
The best explanation for the theories of natural selection is that
A all organisms have equal capacity for survival in their habitats
B organisms have varying capacities for survival in their habitats
C organisms compete for resource and better competitors survive and thrive
D habitats allow only organisms that will not have to compete for survival
In the whistling pine, leaves are reduced to brown scales and young stems are green. This is an adaptation for
A obtaining food
B conserving nutrients
C storing water
D reducing transpiration
In the honey bee colony, the drones are
A sterile males with reduced mouth parts
B sterile males with well-developed mouth parts
C fertile males with reduced mouth parts
D fertile males with well-developed mouth parts
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