CIRCULATION PP P1

Question 1

Sponges, cnidarians, flatworms do not have a circulatory system:
- thin body wall allows each cells to be exposed to water
- cells independently exchange gases and eliminate wastes
(t/f)?

Answer 1

true

Question 2

Roundworms: Use a fluid-filled body cavity as a means of transporting substances (T/F)

Answer 2

true

Question 3

Animals that have a rigid skeleton
May rely on body fluids for the purpose of locomotion
Bivalves pump hemolymph into foot to dig into mud
(T/F)

Answer 3

true

Question 4

Two types of circulatory fluids:

Answer 4

Blood

Hemolymph

Question 5

Blood is contained within__

Answer 5

within blood vessels

Question 6

Hemolymph flows into

Answer 6

flows into hemocoel

Question 7

All vertebrates have a closed circulatory system called a

Answer 7

cardiovascular system

Question 8

Fish - Blood flows in single loop they have___and___

Answer 8

Single atrium and single ventricle

Question 9

Amphibians - Blood flows in double loop have__circuit and__circuit with __and ___

Answer 9

Systemic circuit and pulmonary circuit

Two atria with a single ventricle

Question 10

Other vertebrates - Blood flows in a double loop have heart divided by___

Answer 10

Heart divided by septum into separate sides

Question 11

Septum separates the heart into __and__

Answer 11

into left & right sides

Question 12

the sphincter is like a

Answer 12

gate