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 901: The leech and the earthworm belong to the
            Options:
 A) mollusces
 B) crustaceans
 C) arachnides
 D) annelides
 Show Answer
                The correct answer is D .
             
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            Question 902: Which of the following is an example of conserving resources in an ecosystem Options:
 A) Excessive use of chemical fertilizers in agriculture
 B) Introducing invasive species to an ecosystem
 C) Implementing sustainable fishing practices
 D) Cutting down trees for timber production
 Show Answer
                The correct answer is C .
             
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            Question 903: The part of the brain responsible for peristalsis is the
            Options:
 A) Olfactory Lobe
 B) Medulla Oblongata
 C) Hypothallamus
 D) Thalamus
 Show Answer
                The correct answer is B .
             
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            Question 904: The association in which one member benefits and the other is relatively unaffected by the interaction is termed
            Options:
 A) symbiosis
 B) parasitism
 C) commensalism
 D) mutualism
 Show Answer
                The correct answer is C .
             
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            Question 905: Enzyme ptyalin acts on starch in the
            Options:
 A) oesophagus
 B) large intestine
 C) mouth
 D) stomach
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                The correct answer is C .
             
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            Question 906: Which of the following sets of organisms represents the correct trends from simple to complex structural organization? 1. Mollusca 2. Platyhelminthes 3. Nematoda 4. Protozoa
            Options:
 A) 4 → 1 → 2 → 3
 B) 4 → 3 → 2 → 1
 C) 4 → 2 → 1 → 3
 D) 4 → 2 → 3 → 1
 Show Answer
                The correct answer is C .
             
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            Question 907: The movement of part of a plant in response to external stimulus of no particular direction is? Options:
 A) taxism
 B) tropism
 C) haptotropic movement
 D) nastic movement
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                The correct answer is D .
             
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            Question 908:  The above organism can be classified under which phylum in the animal kingdom Options:
 A) Nematoda
 B) Chordata
 C) Porifera
 D) Annelida
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                The correct answer is B .
             
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            Question 909: The response shown by the tips of the root and shoot of a plant to the stimulus of gravity is
            Options:
 A) haptotropism
 B) phototropism
 C) hydrotropism
 D) geotropism
 Show Answer
                The correct answer is D .
             
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            Question 910: At what stage in the life history of a toad is its mode of breathing similar to that of fish?
            Options:
 A) Tadpole stage
 B) External gill stage
 C) Adult stage
 D) Internal gill stage
 E) Larval stage
 Show Answer
                The correct answer is A .