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Comparative Physiology: Respiratory and Circulatory Systems in Animals Quiz

Comparative Physiology: Respiratory And Circulatory Systems In Animals Quiz

Dive into the intricacies of how animals exchange gases and circulate them within their bodies. This educational tool enhances understanding of physiological processes, essential for students in biology and related fields, aiming...

Questions: 14 | Attempts: 11 | Last updated: Oct 3, 2025

Sample Question 1
What is the structural and functional relationship between the respiratory and circulatory systems?

The relationship between the respiratory and circulatory systems is purely mechanical, with no functional connection in gas exchange or nutrient transport.

The circulatory system is made up of the gills, trachea, and lungs, while the respiratory system consists of the heart and blood vessels.

Respiratory (gill, trachea,lungs)-collection of cells, tissue and organs responsible for gas exchange between the individual and its environment -structures for conduction air or water to a surface where gas exchange takes place (tubing)circulatory (heart, system of vessels)-takes oxygen from respiratory-responsible for moving O2, CO2 and other materials around the body-through circulation, the dissolved O2 and CO2 are transported through out the body.

The respiratory system is responsible for pumping blood throughout the body, while the circulatory system is responsible for exchanging oxygen and carbon dioxide with the environment.

Sample Question 2
Distinguish between open and closed circulatory systems and name the animals that have each.

Open circulatory - blood is fully contained inside vessels-Humans, mammals

Open circulatory-blood is not contained 100% inside vessels-Fish, insectsClosed circulatory:-blood is 100% inside high pressure vessels

Closed circulatory - blood is pumped by a heart and contained entirely within vessels-Frogs, birds

Closed circulatory - blood flows slowly in an open cavity-Oysters, clams

Sample Question 3
How does the insect tracheal system deliver oxygen throughout the body?

The tracheal system of insects is not involved in the transport of gases

Insects use a specialized organ to pump oxygen throughout their bodies

Oxygen is delivered through the insect's blood vessels

-series of tubes extending throughout the body-tips of trachea are tiny, fluid filled and highly branched-transports air close enough to cells for gas exchange to take place directly across their plasma membrane - insects do not use their circulatory system to transport gases to and from tissuesEXPERIMENT (pumping of oxygen by moving)-trachea of flying insects are sandwiched between muscles when muscles contract/relax tracheae contract and expand in response-air moves through spiracles-muscular contractions help ventilate the tracheal system