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 281: The spots and stripes of the leopard and tiger are example of
Options:
A) cryptic colouration
B) warning colouration
C) disruptive colouration
D) counter shading
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The correct answer is C .
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Question 282:
Which of the following describes an example of fertilization in higher organisms?
Options:
A) Fusion of sperm and egg nuclei
B) Pollen grain landing on a sticky stigma
C) Ejaculation of the egg and pollen grain
D) Ejaculation of sperm into the female body
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The correct answer is A .
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Question 283:

A noticeable adaptation of the animal to its aquatic habitat is the possession of
Options:
A) a wide mouth
B) large eyes
C) webbed digits
D) fore limbs
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The correct answer is C .
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Question 284: The mineral nutrient that is most bound to the soil is
Options:
A) phosphorus
B) calcium
C) iron
D) potassium
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The correct answer is C .
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Question 285: A feature associated with the Y-chromosome in human is
Options:
A) long eyelashes
B) prominent fingernails
C) facial hairs
D) enlarged breast
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The correct answer is C .
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Question 286:
The male sex cells also called gametes are produced in the testes by a process called
Options:
A) Gametogenesis
B) Implantation
C) Spermatogenesis
D) Spermatozoa
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The correct answer is C .
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Question 287: An insect with a mandibulate mouth part will obtain its food by
Options:
A) biting and chewing
B) chewing and sucking
C) chewing
D) sucking
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The correct answer is A .
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Question 288:
Possession of thin membrane enables a tapeworm to
Options:
A) Fasten themselves to the wall of the host's intestine
B) Lay numerous eggs
C) Absorb digested food from the host's intestine to their system
D) Shield themselves inside the host's intestine with anti-enzymes in order to avoid being digested
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The correct answer is C .
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Question 289: Serum differs from blood plasma because
Options:
A) contains blood cells and fibrinogen
B) contains soluble food and mineral salt
C) lacks the blood protein and fibrinogen
D) lacks blood cells and albumin
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The correct answer is C .
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Question 290: Coloration of the eye is ______ variation
Options:
A) physiological
B) morphological
C) adaptive
D) recessive
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The correct answer is B .