chap 43, 44 Circulation and Immunity

chap 43, 44 Circulation and Immunity - Name: _ Class: _...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: ________________________ Class: ___________________ Date: __________ ID: A 1 chap 43, 44 Circulation and Immunity Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. In which animals would diffusion alone not be an effective transport mechanism for gas exchange? a. nematodes b. sponges c. cnidarians d. annelids e. flatworms ____ 2. Diffusion is an effective method of transport when: a. the surface of the organism is thin. b. the surface to volume ratio is large. c. the surface is moist. d. the surface is thin and moist. e. the surface is thin and moist, and the surface to volume ratio is large. ____ 3. A closed circulatory system usually consists of all of the following except : a. blood. b. pumping organ. c. arteries d. veins. e. hemocoel. ____ 4. Why doesn't a flatworm have a circulatory system? a. The animal is thin enough to permit effective gas exchange by diffusion. b. There is not enough room for a circulatory system because of the large gastrovascular cavity. c. The animal lacks muscles, so it could not have a heart to pump blood. d. Only bilaterally symmetrical animals need a circulatory system. e. Only vertebrates have circulatory systems. ____ 5. Which of the following statements is false ? a. The tissues of arthropods are bathed with hemolymph, which delivers oxygen to their cells. b. In an open circulatory system the heart is still responsible for pumping oxygen-rich fluid. c. Earthworms have a central heart that pumps blood to all their tissues. d. Blood vessels are found in the open circulatory systems common to some invertebrates. e. Hemocyanin is the oxygen transport pigment found in the open circulatory system of invertebrates.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Name: ________________________ ID: A 2 Figure 43-1 Use the figure to answer the corresponding question(s). ____ 6. The type of system depicted in Figure 43-1 is: a. an open circulatory system. b. a vertebrate circulatory system. c. a closed circulatory system. d. a lymph system. e. an open digestive system. ____ 7. The type of system depicted in Figure 43-1: a. can be found in arthropods. b. can be found in cephalopods. c. can be found in annelids. d. has hemoglobin as the oxygen transporting pigment. e. can be found in arthropods and annelids. ____ 8. The fluid transported by the system depicted in Figure 43-1: a. accumulates in a blood cavity called a hemocoel. b. is also called hemolymph. c. can be found in grasshoppers. d. has hemocyanin as the oxygen transporting pigment. e. All of these. ____ 9. The oxygen transporting pigment found in the system depicted in Figure 43-1 is most likely: a. hemoglobin. b. hemolymph. c. hemocyanin. d. globulin. e. erythropoietin. ____ 10. The vertebrate circulatory system performs all of the following functions
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 28

chap 43, 44 Circulation and Immunity - Name: _ Class: _...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online