AP BIOLOGY

ANIMAL PHYSIOLOGY

EXCRETION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a closed circulatory system, blood always stays inside vessels and the
A
heart
B
veins
C
capillaries
D
cells
Explanation: 

Detailed explanation-1: -In a closed circulatory system, blood is completely enclosed within vessels. Blood flows in the blood vessels with high pressure such that it reaches all body parts. The blood vessels are branched into fine capillaries which are involved in exchange of materials.

Detailed explanation-2: -In a closed circulatory system, blood is contained inside blood vessels, circulating unidirectionally (in one direction) from the heart around the systemic circulatory route, then returning to the heart again.

Detailed explanation-3: -Humans have a closed circulatory system. The blood is enclosed in the vessels and the heart while circulating. The blood travels through arteries and veins and carries important molecules throughout the body.

Detailed explanation-4: -In a closed circulatory system, blood is contained inside blood vessels and circulates unidirectionally from the heart around the systemic circulatory route, then returns to the heart again. As opposed to a closed system, arthropods– including insects, crustaceans, and most mollusks– have an ‘open’ circulatory system.

Detailed explanation-5: -A closed circulatory system is comprised of the heart that pumps blood into the vessels to reach the tissues and organs. The exchange of gases in the bloodstream occurs between smaller vessels (capillaries) and tissues.

There is 1 question to complete.