If the pituitary fails to release growth hormone during childhood, the likely result is:
Correct Answer: A. Reduced growth rate
MCQ Collection
Animal Form and Function-I MCQs
Practice Animal Form and Function-I questions with answers and explanations.
A researcher compares hormone action in molluscs, annelids, and arthropods. A shared theme is that chemical messengers regulate:
Correct Answer: A. Growth, reproduction, and behavior
Capillaries are thin-walled because they are specialized for:
Correct Answer: A. Exchange of gases, nutrients, and wastes
A drug blocks acetylcholine receptors at a neuromuscular junction. The expected result is:
Correct Answer: A. Weak or absent muscle contraction
A person with damaged pain receptors touches a sharp object without immediate warning. The missing receptor function is:
Correct Answer: A. Nociception
A zoology practical includes neurons structure and function. The cell body is important mainly because it:
Correct Answer: A. Contains nucleus and metabolic machinery
A student describes negative feedback using blood glucose. When glucose falls, insulin secretion normally:
Correct Answer: A. Decreases
A student compares simple nerve nets and centralized nervous systems. Nerve nets are typical of animals such as:
Correct Answer: A. Cnidarians
A student studies sonar-like sensing in animals. In mammals such as bats, sound perception depends on:
Correct Answer: A. Hearing receptors detecting reflected sound
A student notices that some stimuli cause glands to release secretions. This is an example of communication between:
Correct Answer: A. Nervous system and effectors
After blood calcium drops, parathyroid hormone is released. Its expected effect is to:
Correct Answer: A. Increase blood calcium level
An earthworm shows more coordinated movement than a cnidarian polyp. One reason is the presence of:
Correct Answer: A. Ventral nerve cord and segmental ganglia