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 1:
The main function of the structure labelled 2 is to
Options:
A) protect the inner parts of the seed
B) nourish the embryo and the growing plant
C) keep the inner parts moist
D) maintain the shape if the seed
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The correct answer is B .
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Question 2: Two organisms of different species, living in close association but not dependent on each other are referred to as
Options:
A) parasites
B) commensals
C) symbionts
D) autotrophs
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The correct answer is D .
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Question 3: A student trying to find out the order in which organisms appear on a cleared plot is studying one of the following
Options:
A) Ecosystem
B) Food chain
C) Food web
D) Succession
E) Community
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The correct answer is D .
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Question 4: Partially digested food ready to leave the stomach is referred to as
Options:
A) chyme
B) curd
C) glycogen
D) paste
E) roughage
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The correct answer is A .
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Question 5: The autonomic nervous system consists of neurons that control the
Options:
A) voluntary muscles
B) heart beat
C) tongue
D) hands
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The correct answer is B .
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Question 6:
Which of the following is an evolutionary trend commonly observed in organisms?
Options:
A) Decreased complexity over time
B) Increased dependence on external resources
C) Increased genetic diversity within populations
D) Decreased adaptation to the environment
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The correct answer is C .
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Question 7: Plants adapted for life in salty marsh are called
Options:
A) hydrophytes
B) xerophytes
C) halophytes
D) epiphytes
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The correct answer is C .
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Question 8: Fungi are heterotropic because they
Options:
A) have no leaves
B) lack roots
C) are filamentous
D) lack chlorophyll
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The correct answer is D .
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Question 9:
Use the diagram above to answer this question.
If the dogs are offspring of a monohybrid cross and the gene G for grey head is dominant cross over its allele g, the individual whose genotype is likely to be gg is
Options:
A) ll
B) l
C) IV
D) lll
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The correct answer is B .
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Question 10: The lowest unit of classification is the
Options:
A) class
B) genus
C) phylum
D) species
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The correct answer is D .