A fish loses the lateral line on one side of its body. It would most likely struggle with:
Correct Answer: A. Detecting water currents and nearby moving objects
MCQ Collection
Animal Form and Function-I MCQs
Practice Animal Form and Function-I questions with answers and explanations.
If receptors in the nose are blocked by mucus during illness, the animal may have reduced:
Correct Answer: A. Olfaction
Calcitonin is released when blood calcium becomes high. Its role is mainly to:
Correct Answer: A. Lower blood calcium
A vertebrate brain integrates visual, chemical, and balance information. This illustrates:
Correct Answer: A. Central processing of sensory inputs
A student compares smell in air and taste in saliva. Both require chemicals to:
Correct Answer: A. Bind receptor molecules
A sensory receptor that responds to stretch in the stomach wall informs the brain about fullness. It is functioning as a:
Correct Answer: A. Mechanoreceptor
A student studies insect metamorphosis. Ecdysone is important because it:
Correct Answer: A. Stimulates molting processes
A fish rapidly turns away from a pressure wave in water. The stimulus is first detected by:
Correct Answer: A. Lateral-line mechanoreceptors
A receptor in the skin detects gentle touch but not light. The receptor is most likely a:
Correct Answer: A. Mechanoreceptor
A student asks why communication systems are essential in multicellular animals. The best answer is that cells must:
Correct Answer: A. Coordinate activities across tissues and organs
In insects, high juvenile hormone during molting tends to maintain:
Correct Answer: A. Larval characteristics
An animal tracks prey in complete darkness using water vibrations. The most useful sensory adaptation would be:
Correct Answer: A. Well-developed lateral line