Answer:
Will eating too much fat in food cause brain cancer?
Explanation:
A good scientific question is one that can have an answer and be tested. Avoid how and why questions.
The correct answer is D,
dose this help?
Arthropoda and molluscs have open circulatory systems - meaning haemolymph (Their equivalent to blood) directly bathes the tissue, and isn't enclosed in blood vessels, as seen in a closed blood system, as in humans for example.
