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 651: Spirogyra reproduces vegetatively by
Options:
A) spore production
B) fragmentation
C) multiple fission
D) budding
E) binary fission
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The correct answer is B .
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Question 652: Complex social behaviour and organization are found mostly in
Options:
A) insects
B) birds
C) reptiles
D) mammals
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The correct answer is D .
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Question 653:
A characteristic of the phylum coelenterata is that
Options:
A) most of them are marine
B) they possess a gut with a single opening
C) thy possess numerous pores on their body
D) they are bilaterally symmetrical
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The correct answer is B .
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Question 654: The following organisms are hermaphrodites EXCEPT
Options:
A) snail
B) Taenia
C) Schistosoma
D) Earth worm
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The correct answer is C .
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Question 655: One distinctive feature in the life history of liverworts is that they exhibit
Options:
A) Alternation of generation
B) Vegetative reproduction
C) Asexual reproduction
D) Sexual reproduction
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The correct answer is A .
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Question 656: Size, colour and fingerprints are examples of ______
Options:
A) physiological variation
B) discontinuous variation
C) morphological variation
D) adaptive variation
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The correct answer is C .
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Question 657:

In the figure above the cell which controls the opening and closing of stomatal pore is
Options:
A) 1
B) 2
C) 3
D) 4
E) 5
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The correct answer is E .
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Question 658:
Ecology is best defined as the study of
Options:
A) The characteristics of an environment
B) The inter-relationship between living organisms and the environment
C) Living organisms in a particular area
D) The habitats and wild life
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The correct answer is B .
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Question 659: Oestrogen is a hormone that is synthesized in the
Options:
A) ovaries
B) testes
C) anterior pituitary
D) adrenal cortex
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The correct answer is A .
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Question 660: The gland that releases hormones into the blood are part of the
Options:
A) digestive system
B) endocrine system
C) circulatory system
D) respiratory system
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The correct answer is B .