2003 - JAMB Biology Past Questions and Answers - page 3
21
In mammalian males, the excretory and reproductive systems share the
A
Ureter
B
vas deferens
C
Urethra
D
Testes
correct option: c
Users' Answers & Comments22
Metabolic production of urea is carried out in the
A
urinary bladder and kidney
B
Liver
C
Pancreas
D
Kidney and malphigian tubule
correct option: b
All the metabolic wastes are excreted in a form of water solutes through the excretory organs (nephridia, Malpighian tubules, kidneys), with the exception of CO2, which is excreted together with the water vapor throughout the lungs. The elimination of these compounds enables the chemical homeostasis of the organism. Urea is produced in the liver and is a metabolite
Users' Answers & Comments23
A
Sympathetic and parasympathetic nervous systems
B
Peripheral and central nervous system
C
Peripheral nervous system only
D
Central nervous system only
correct option: b
Users' Answers & Comments24
A
myelin sheath
B
dendrites
C
axon
D
node of Ranvier
correct option: d
Users' Answers & Comments25
Homologous pairs of chromosome separate during
A
Cytolysis
B
Cleavage
C
Mitosis
D
Meiosis
correct option: d
Users' Answers & Comments26
An example of a caryopsis is
A
Guava
B
Maize grain
C
Coconut
D
Tomato
correct option: b
Users' Answers & Comments27
The response of plants to external stimuli in a non-directional manner is known as
A
Tactic movement
B
Phototropism
C
Geotropism
D
Nastic movement
correct option: d
Plant movements that are independent of the direction of the stimulus or that are caused by non-directional stimuli are called nastic movements or nasties
Users' Answers & Comments28
The most important hormone that induces the ripening of fruit is
A
Ethylene
B
Indole acetic acid
C
Gibberallin
D
Cytokinin
correct option: a
Users' Answers & Comments29
A density-dependent factor that regulates the population size of organism is
A
Disease
B
Sudden flood
C
Drought
D
Fire outbreak
correct option: a
Users' Answers & Comments30
One example of fossil fuels is
A
Limestone
B
Coral
C
Coal
D
Firewood
correct option: c
Users' Answers & Comments