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 661: Hermophroditic reproduction can be found among the
Options:
A) Arthropods and nematodes
B) Pisces and amphibians
C) Annelids and molluscs
D) coelenterates and platyhelminthes
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The correct answer is D .
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Question 662:

Use the diagram above to answer this question.
From the graph above, it can be appropriately deduced that
Options:
A) the body temperature in ll varies with that in l
B) the body of temperature in l is independent of external temperature
C) l and ll maintain constant body temperature
D) external temperatures affect the body temperature of l and ll
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The correct answer is B .
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Question 663: The pancreatic juice contains the enzymes amylopsin,
Options:
A) pepsin and trpsinogen
B) rennin and steapsin
C) steapsin and trypsinogen
D) steapsin and ptyalin
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The correct answer is C .
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Question 664:
Which of the following statement about the similarities in plant and animal transport is correct?
Options:
A) Materials and hormones are transported in fluid form
B) The transport medium is made up of only tissues
C) Their materials are transported in the same vessels
D) Diffusion is not required
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The correct answer is A .
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Question 665: The biological association that contributes directly to succession in a community is
Options:
A) competition
B) predation
C) parasitism
D) commensalism
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The correct answer is A .
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Question 666:

At which temperature will cockroaches not survive after 10 days
Options:
A) 15oC
B) 19oC
C) 24oC
D) 33oC
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The correct answer is A .
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Question 667: The element common to protein carbohydrate and lipid is
Options:
A) hydrogen
B) sulphur
C) nitrogen
D) phosphorus
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The correct answer is A .
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Question 668:
Which of the following is the effect of using artificial pollination in plant breeding?
Options:
A) Production of healthy crops
B) Lengthening the maturity time of crops
C) Making crops susceptible to disease
D) Improvement of the variety of crops
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The correct answer is D .
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Question 669: Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because
Options:
A) the deposits have remains of organisms characteristic of when they were formed
B) different strata have remains of organisms of the same kind
C) only organisms with strong parts are fossilized
D) most animal and plant fossils bear little resemblance to present day living specimens
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The correct answer is A .
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Question 670: In an agricultural ecosystem, the biotic component consists of
Options:
A) crop, pest and beneficial insects
B) crops, temperature and humidity
C) pests, beneficial insects and water
D) crops, water and soil
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The correct answer is A .