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 171: Which of the following correctly summarizes the life cycle of fern plant?
Options:
A) Spore → prothallus → thallus → sporangium
B) Male and female gamentangia → zygospores → sporangium → spores
C) Spore → thallus → spermatozoa + ovum → sporangium
D) Prothallus → spermatozoid → +egg cell → leafy plant → sporangium → spore
Show Answer
The correct answer is D .
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Question 172: The basic point of impact by changes which produce mutation is the
Options:
A) gametes
B) chromosomes
C) phenotype
D) zygote
Show Answer
The correct answer is B .
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Question 173: The following group of plants is the most advanced except
Options:
A) bryophyte
B) pteridophyta
C) spermatophyte
D) thallophytic
Show Answer
The correct answer is D .
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Question 174:
Mass of a crucible = 10g,
Mass of a crucible and soil before heating =29g
Mass of a crucible and soil after heating = 18g
From the information above, determine the percentage of water in the given soil sample?
Options:
A) 20%
B) 25%
C) 40%
D) 60%
Show Answer
The correct answer is D .
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Question 175: In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces
Options:
A) alcohol
B) oxygen
C) carbon dioxide
D) energy
E) ethanol
Show Answer
The correct answer is C .
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Question 176: Which of the following types of feathers is used for flight in birds?
Options:
A) Quill
B) Filoplume
C) covert
D) Down
Show Answer
The correct answer is A .
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Question 177: IF an organism obtains its food by means of haustoria, it is said to be
Options:
A) holophytic
B) heterophytic
C) saprophytism
D) parasitic
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The correct answer is D .
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Question 178:
The part labelled II is the
Options:
A) mesocarp
B) pericarp
C) endocarp
D) epicarp
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The correct answer is A .
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Question 179: Epigeal germination of a seed is characterized by
Options:
A) more rapid elongation of the hypocotyl than the epicotyl
B) more rapid elongation of the epicotyl than the hypocotyl
C) equal growth of both the hypocotyl and epicotyl
D) lack of growth of the hypocotyl
Show Answer
The correct answer is A .
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Question 180: Two main distinguishing features of the cervical vertebra are the presence of
Options:
A) short neural spine and vertebraterial canal
B) prozygapophysis and cervical ribs
C) large centrum and cervical ribs
D) vertebraterial canal and large centrum
Show Answer
The correct answer is A .