AP BIOLOGY

ANIMAL PHYSIOLOGY

HUMAN CIRCULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The two types of circulatory systems are ____
A
open and closed
B
open and shut
C
pulmonary and closed
D
pulmonary and systemic
Explanation: 

Detailed explanation-1: -Open circulatory system: It is primarily found in invertebrates. Here, the blood flows freely through cavities since there are no vessels to conduct the blood. Closed circulatory system: It is found in vertebrates and a few invertebrates, like earthworms. This system has vessels that conduct blood throughout the body.

Detailed explanation-2: -The pulmonary circulation is a short loop from the heart to the lungs and back again. The systemic circulation carries blood from the heart to all the other parts of the body and back again.

Detailed explanation-3: -The circulatory system is effectively a network of cylindrical vessels (the arteries, veins, and capillaries) that emanate from a pump (the heart). In all vertebrate organisms, as well as some invertebrates, this is a closed-loop system in which the blood is not moving freely in a cavity.

Detailed explanation-4: -Organisms with an Open Circulatory System are-Snails, clams, cockroaches and spiders. Organisms with a Closed Circulatory System are-Humans, squids, Cats, earthworms. 8.

There is 1 question to complete.