Question

Choose the correct answers from the alternatives given.
An insect circulatory system is best described as

• A. totally dosed like ours, with arteries and veins
• B. similar to ours with general closed vessels but no distinct arteries and veins
• C. an open system that mostly washes blood through the body cavities
• D. totally absent; each body cell manages on its own to gain food and get rid of wastes

Answer 1

The correct option is C an open system that mostly washes blood through the body cavities

Like all arthropods, insects have an open circulatory system as opposed to our closed circulatory system. Whereas our blood is confined within blood vessels, insect blood, called hemolymph, flows freely throughout the body and washes the organs with oxygen-rich hemolymph.

So the correct answer is "an open system that mostly washes blood through the body cavities."