Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.
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Question 421: The construction of dams may lead to an increase in the prevalence of
Options:
A) typhoid fever, measles and yellow fever
B) tuberculosis, leprosy and trypanosomiasis
C) guinea worm, malaria and tuberculosis
D) malaria, bilharziasis and onchocerciasis
Show Answer
The correct answer is D .
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Question 422: Which of following is NOT involved in the transport of substance in the body?
Options:
A) Lymph
B) Plasma
C) Leucocytes
D) Erythrocytes
Show Answer
The correct answer is C .
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Question 423: A child with blood group genotype different from those of both parents and with a mother of genotype OO, can only have a father of genotype
Options:
A) A
B) B
C) AB
D) OO
Show Answer
The correct answer is C .
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Question 424:
Which of the structure becomes the seed coat after fertilization?
Options:
A) 1
B) 2
C) 3
D) 4
E) 5
Show Answer
The correct answer is C .
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Question 425: Which of the following is the common to the mosquito, housefly and blackfly?
Options:
A) they undergo complete metamorphosis
B) they are parasites of man
C) their immature stages are aquatic
D) their adults have two pairs of wings
Show Answer
The correct answer is A .
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Question 426: Which of these is not associated with the movement of the toad, reptile or bird?
Options:
A) Hopping
B) Bopping
C) Flapping
D) Gliding
E) Pecking
Show Answer
The correct answer is E .
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Question 427: In community, bacteria and fungi are referred to as
Options:
A) producers
B) decomposers
C) scavengers
D) consumers
Show Answer
The correct answer is B .
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Question 428: Which of these parts of the mammalian ears is directly concerned with the sense of balance?
Options:
A) Cochlea
B) Eustachian tube
C) Ear-drum
D) Pinna
E) Semicircular canals
Show Answer
The correct answer is E .
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Question 429: The center which controls respiratory activities the mammalian brain is the
Options:
A) cerebrum
B) olfactory lobe
C) pituitary organ
D) cerebellum
E) medulla
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The correct answer is E .
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Question 430:
Blood is pumped into the right ventricle by the contraction of the auricle wall through
Options:
A) 1
B) 3
C) 5
D) 6
Show Answer
The correct answer is B .