Question 1 of 20 351 total questions
A dehiscent fruit formed from several fused carpels with man seeds is classified as a/an
A achene
B capsule
C caryopsis
D follicle
E legume
Liver destroys old red blood cells to produce digestive substance called
A amalyse
B bile
C insulin
D lipase
E rennin
What will the phenotypic ratio when a tall pea plant (TT) is crossed with a short pea plant (Tt)?
A 0:04
B 1:03
C 2:02
D 3:01
E 4:00
Loamy soil - is used for crop production because of its
A high humus content
B high percentage of clay
C high porosity
D low gravel content
E low humus content
Which of these is a courtship behavior in toad?
A Display of body parts
B Display of color
C Pairing
D Production of scent
E Territoriality
The following practices are adopted in the conservation of tropical rain forest EXCEPT
A afforestation
B creation of game reserve
C creation of forest reserve
D re-afforestation
E deforestation
The function of ribosome is
A excretion of waste
B protein synthesis
C reproduction
D respiration
E secretion of hormones.
The splitting of water molecule by light during photosynthesis is called
A chemosynthesis
B haemolysis
C hydrolysis
D photolysis
E haemolysis
Which of the following crop diseases is caused by a fungus?
A Cassava blight
B Cocoa black pod
C Groundnut rosette
D Lettuce mossaic
E Yam mosaic
Which of these is produced by pancreas?
A Insulin
B Pepsin
C Ptyalin
D Renin
E Streapsin
Which of these is NOT an example of reflex action
A Walking
B Banging of feet on an object
C Blinking of the eyes
D Jerking of the knee
E Sneezing
Which of the following is NOT a natural method of birth control?
A Abstaining from sex
B Prolonged breast feeding
C Rhythm method
D Use of condom
E Withdrawal method
Which of these factors least affects population size?
A Availability of food
B Disease
C Immigration
D Rate of reproduction
E Variation
Crime detection in a forensic laboratory involves the use of
A blood transfusion
B blood analysis
C fingerprints
D genetic combination
E tongue rolling ability
During fertilization, the direction in which the pollen tube grows is controlled by
A Ovary
B ovule
C pollen grains
D pollen tube nucleus
E style
The following are functions of the liver EXCEPT
A deamination of excess amino acids and proteins
B excretion of bile pigments
C manufacture of blood plasma
D production of heat
E storage of vitamins and minerals
Which of these organisms exists as a filament?
A Diatom
B Euglena
C Paramecium
D Spirogyra
E Volvox
The following attract insects to flowers for pollination EXCEPT
A brightly coloured petals
B broad and grooved corolla
C presence of anther with light pollen grains
D presence of nectar
E presence of sweet scent
Petals join together to form a tube known as
A epigynous
B gamopetalous
C hypogynous
D polypctalous
E polysepalous
The network of blood capillaries in the kidney capsule is referred to as
A capsule
B glomerulus
C pelvis
D pyramid
E ureter
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