A fish gill capillary receives blood from the heart. At the gills, blood mainly:
Correct Answer: A. Loads oxygen and releases carbon dioxide
MCQ Collection
Animal Form and Function-I MCQs
Practice Animal Form and Function-I questions with answers and explanations.
A student asks why blood flow must be regulated between organs. The answer is that organs have:
Correct Answer: A. Changing metabolic demands
A student asks why adaptive immunity is powerful against repeat infections. The reason is:
Correct Answer: A. Memory cells respond faster on re-exposure
A person lacks functional lymphocytes. The immune problem is mainly with:
Correct Answer: A. Adaptive immunity
An antibody binds specifically to a pathogen antigen. Antibodies are produced by:
Correct Answer: A. B lymphocytes or plasma cells
A frog can use skin for gas exchange. Circulation helps this process by:
Correct Answer: A. Transporting gases between skin and body tissues
During digestion, more blood flows to the gut. This adjustment supports:
Correct Answer: A. Nutrient absorption and processing
A lymphocyte matures and produces antibodies after activation. It has become a:
Correct Answer: A. Plasma cell
A student compares hemolymph and lymph. Hemolymph is the main circulating fluid in many open systems, while lymph mainly:
Correct Answer: A. Returns tissue fluid to blood in vertebrates
T lymphocytes are especially important for:
Correct Answer: A. Cell-mediated immunity
If blood vessels constrict widely, blood pressure usually:
Correct Answer: A. Increases
A student compares pulmonary and systemic circulation. Pulmonary circulation carries blood between:
Correct Answer: A. Heart and lungs