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 2011: I. High birth rate and high immigration rate II. Low birth rate and high immigration rate II. Low mortality rate and low emigration IV. High mortality rate and high emigration rate. Which combination of the above can cause rapid over-crowding in climax biotic communities and human settlements?
Options:
A) II and III
B) I and III
C) I and IV
D) I and II
Show Answer
The correct answer is B .
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Question 2012: During ovulation, an egg is released from the
Options:
A) corpus luteum
B) ovarian funnel
C) graafian follicle
D) fallopian tube
Show Answer
The correct answer is C .
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Question 2013: Which of the following statements is NOT true of insectivorous plants?
Options:
A) They obtain part of their food by trapping and feeding on insects
B) They attract insects simply because of pollination
C) Thay can grow in soils poor in nitrogenous salts
D) They can supplement their nitrgen supply by feeding on insects
E) Example include butterworts, sundews and pitcher plants
Show Answer
The correct answer is B .
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Question 2014:
What is autotrophic nutrition?
Options:
A) Nutrition in which organisms obtain food by breaking down complex organic compounds.
B) Nutrition in which organisms obtain food from other organisms
C) Nutrition in which organisms obtain food by consuming both plants and animals
D) Nutrition in which organisms produce their own food using energy from the sun or inorganic substances
Show Answer
The correct answer is D .
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Question 2015: The one-seeded fuit in which the pericarp and the seed coat have become fused together is known as
Options:
A) achene
B) samara
C) caryopsis
D) legume
E) drupe
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The correct answer is C .
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Question 2016: The outermost embryonic membrane in the mammal is the
Options:
A) amnion
B) chorion
C) allantois
D) yolk sac
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The correct answer is B .
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Question 2017: In which of the following groups of fruits is the pericarp inseparable from the seed coat?
Options:
A) Nut
B) Follicle
C) Cypsela
D) Crayopsis
Show Answer
The correct answer is D .
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Question 2018: The highest percentage of energy in an ecosystem occurs at the level of the
Options:
A) secondary consumer
B) decomposers
C) producers
D) primary consumers
Show Answer
The correct answer is C .
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Question 2019: A soil consisting of alumina and iron (II)oxide is known as
Options:
A) loamy soil
B) clayey soil
C) laterite
D) podzol
Show Answer
The correct answer is C .
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Question 2020: Spines and shells on animals are adaptation for
Options:
A) camouglage
B) chemical defence
C) physical defence
D) mimicry
Show Answer
The correct answer is C .