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
Which of the following modes of nutrition Is autotrophic?
- A. Holophytic
- B. Holozoic
- C. Parasitic
- D. Saprophytic
- E. Symbiotic