Circulatory System

How many times does the ventricle pump blood to gills in the fish during one circulation?

• 1

• 2

• 3

• 4

What type of blood does the fish pump in its CS?

• oxygenated blood

• deoxygenated blood

Why is the fish able to only have 1 atrium and 1 ventricle?

• Gas exchange is efficient and aquatic

• have gills

• operculum pumps water out fast

Tags

NGSS.MS-LS4-2

Where does the mixing of oxygenated and deoxygenated blood occur?

• atrium

• ventricle

• lung

• systemic capillaries

Who has an open circulatory system?

• Mollusca

• Arthropoda

• Fish

• amphibians

Choose all that apply to a reptile's (excluding crocadiles) circulatory system.

• 1 ventricle

• septum

• 2 atria

• open circulatory system

Why is it important that a septum separate deoxygenated and oxygenated blood in reptiles (not crocadiles)?

• ectotherm/terrestrial and do not have cutaneous respiration like the frogs

• Endotherm/terrestrial and do not have cutaneous respiration like the frogs

• do cutaneous respiration

What describes the circulatory system of chordata/cephalopoda? Choose all that apply.

• 2 atria

• 2 ventricles

• closed circulatory system

• completely removes mixing of blood; most efficient

Why do chordates need a circulatory system that completely removes mixing of deoxygenated and oxygenated blood?

• aquatic

• endotherms, high metabolism

• ectotherms, energy changes with the temperature of the environment

What part of this system pumps the oxygen-poor blood through the pulmonary valve to the lungs?

• Right ventricle

• Left ventricle

• Right atrium

• Left atrium