If a joint becomes immovable due to fusion of bones, the main function lost is:
Correct Answer: A. Flexibility of movement
MCQ Collection
Animal Form and Function-I MCQs
Practice Animal Form and Function-I questions with answers and explanations.
A zoology student links skeleton to protection. The skull is a good example because it protects the:
Correct Answer: A. Brain
An invertebrate burrows by anchoring some body segments while extending others. This locomotion is typical of:
Correct Answer: A. Earthworm using hydrostatic skeleton
A fish uses fins to maintain balance and direction while swimming. Fins function together with muscles and skeleton as:
Correct Answer: A. Locomotor and stabilizing structures
A fish skeleton and muscles produce side-to-side waves during swimming. The movement is best described as:
Correct Answer: A. Axial locomotion using body bends
A vertebrate rib cage is damaged. The organ systems most immediately at risk are:
Correct Answer: A. Respiratory and circulatory organs in the thorax
A student confuses chitin with bone. The important difference is that chitin is mainly:
Correct Answer: A. A structural polysaccharide in arthropod cuticle
A student notes that cartilage is flexible compared with bone. Cartilage is especially useful where the body requires:
Correct Answer: A. Support with flexibility
An animal with a hard external covering gains protection but faces a special growth problem. The problem is solved by:
Correct Answer: A. Molting
A researcher observes that aquatic larvae use cilia to create feeding currents. The cilia are helping with:
Correct Answer: A. Movement of water and food particles
A laboratory note says “study of adaptations of skeletons to their function must be done.” The best matching principle is:
Correct Answer: A. Structure reflects mechanical demand
A shark skeleton differs from a typical bony fish because it is mainly:
Correct Answer: A. Cartilaginous