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 711: Grasses grasshopper lizard snakes hawks. In the food chain, the organism which are the least in number are
Options:
A) grasses
B) grasshopper
C) lizards
D) snakes
E) hawks
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The correct answer is E .
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Question 712: The force that holds water together in the form of a stream within the xylem tube is the
Options:
A) cohesion of water molecules to one another by hydrogen bonds
B) force of gravity attacking the water molecules through the hydrogen bonds
C) attraction between the water and xylem osmotic force
D) normal flow of water from the ground with help of gravitational force
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The correct answer is A .
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Question 713: The slender, long and slightly curved beak of the sun-bird is an adaptation for breeding for feeding on
Options:
A) nectar
B) small seeds
C) big seeds
D) insects
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The correct answer is A .
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Question 714:
Which of the following is NOT a method of reproduction in animals?
Options:
A) Asexual reproduction
B) Budding
C) Sexual reproduction
D) Sporulation
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The correct answer is D .
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Question 715: The number of plants species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?
Options:
A) 35%
B) 16%
C) 46%
D) 23%
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The correct answer is C .
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Question 716: In the woody stems, gaseous exchange takes place through the
Options:
A) micropyles
B) stomata
C) lenticels
D) vessels
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The correct answer is C .
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Question 717: If a baby is a female, her mother's ovum must have been fertilized by a sperm carry the chromosome
Options:
A) X
B) XY
C) XX
D) YY
E) Y
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The correct answer is A .
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Question 718: Drancunculiasis can be contacted through
Options:
A) eating contaminated food
B) drinking contaminated water
C) bathing in contaminated water
D) bites of blackfly
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The correct answer is B .
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Question 719: In the nitrogen cycle, the nitrates in the soil are converted to atmospheric nitrogen by
Options:
A) puterfying bacteria
B) nitrogen-fixing bacteria
C) nitrifying bacteria
D) denitrifying bacteria
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The correct answer is D .
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Question 720:
What is the function of 3?
Options:
A) cutting of large piece of food
B) seizure and tearing of prey
C) Grinding of food
D) Tearing of flesh only
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The correct answer is B .