A student incorrectly says all animal movement requires muscles. The best correction is that:
Correct Answer: A. Some unicellular forms move by cilia, flagella, or pseudopodia
MCQ Collection
Animal Form and Function-I MCQs
Practice Animal Form and Function-I questions with answers and explanations.
A student touches a hot surface and quickly pulls the hand away. The effector in this response is mainly:
Correct Answer: A. Skeletal muscle
A microscope slide shows dense keratin in mammalian hair. Keratin is important because it gives hair:
Correct Answer: A. Strength and protection
An amoeba changes shape while moving toward food. Its locomotion depends mainly on:
Correct Answer: A. Cytoplasmic streaming and pseudopodia
During a slide study, protozoan cilia are compared with vertebrate muscles. Both are related to:
Correct Answer: A. Movement, but at different levels of organization
A receptor responds to pressure on the skin. This receptor is best classified as a:
Correct Answer: A. Mechanoreceptor
A paramecium moves through water without muscles. Its locomotion is produced mainly by:
Correct Answer: A. Cilia
An amphibian kept in a very dry container becomes stressed quickly. The physiological reason is that its skin is:
Correct Answer: A. Permeable and easily loses water
In a practical class, a student relates insect chitin to fish scales and bird feathers. The shared broad function is:
Correct Answer: A. Body protection
A bird loses many feathers during molting. Until replacement, the most likely functional problem is:
Correct Answer: A. Reduced insulation or flight efficiency
An animal detects dissolved food chemicals in water. The receptor type most directly involved is:
Correct Answer: A. Chemoreceptor
A sperm cell moves toward an egg using a long whip-like structure. This example represents movement by:
Correct Answer: A. Flagellum