How Is an Insect Circulatory System Best Described

question 10

Multiple Choice

How is an insect circulatory system best described?

• A)The open system uses a dorsal aorta and accessory pulsatory organs to push hemolymph through the body cavities and wings,etc.but the hemolymph has little respiratory function.
• B)The system is totally closed like ours with arteries and veins and the amebocytes aid in respiratory function.
• C)The system is similar to ours with general closed sinuses but no distinct arteries and veins.
• D)A circulatory system is totally absent and each body cell is on its own to gain food and get rid of wastes.
• E)None of the choices is correct.

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