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 401: The dental formula 13/3 c1/1 pm4/4 m2/3 is that of a
Options:
A) goat
B) rabbit
C) man
D) dog
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The correct answer is D .
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Question 402: Which of the following sequences represents process of blood clothing? 1. Fibrins forms a network of threads 2. Red blood cells are caught and clot is formed 3. Fibrinogen in plasma changes into fibrin 4. Blood is exposed to air
Options:
A) 4, 3, 2, 1
B) 4, 3, 1, 2
C) 3, 1, 4, 2
D) 1, 2, 3, 4
E) 3, 1, 2, 4
Show Answer
The correct answer is B .
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Question 403: In his theory of evolution, Darwin implied that
Options:
A) the struggle for existence among living organisms is sporadic
B) the most successful organisms are those that best adapt to their environment
C) organs of the body which are not regularly used by an organism will disappear
D) any traits acquired by an organism during its lifetime can be passed on its offspring
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The correct answer is B .
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Question 404: The activity of an organism which affects the survival of another organism in the same habitat constitutes
Options:
A) an edaphic factor
B) an abiotic factor
C) a biotic factor
D) a physiographic factor
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The correct answer is C .
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Question 405: An individual in the AB blood group is a universal recipient for blood donation because
Options:
A) all the red blood cells do not carry antigen
B) all the red blood cells carry antigen
C) all the red blood cells carry antigen
D) there are no anti-A and anti-B antibodies in the serum
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The correct answer is D .
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Question 406: The chromosome number of a cell before and after the process of meiosis is conventionally represented as
Options:
A) 2n → 2n
B) n → n
C) n → 2n
D) 2n → n
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The correct answer is D .
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Question 407: The end products of the digestion of fats and oils in mammals are
Options:
A) maltose and fatty acid
B) amino acids and glucose
C) fatty acid and fructose
D) fatty acids and glycerin
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The correct answer is D .
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Question 408: In which of the following organism does a single cells performs all the function of movement, nutrition, growth , excretion, photosynthesis?
Options:
A) Paramecium
B) Euglena
C) Amoeba
D) Spirogyra
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The correct answer is B .
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Question 409:
The type of placentation shown is
Options:
A) axial
B) marginal
C) parietal
D) central
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The correct answer is B .
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Question 410: The procaryotic cell type is characterized by a
Options:
A) complex cytoplasm in which different regions are poorly defined
B) localization of different regions of the cell into tissues
C) collection of organelles and macromolecular complexes
D) simple cytoplasm with well defined regions
Show Answer
The correct answer is A .