Explanation:
Both flukes and tapeworms are parasites with vertebrate hosts, including human hosts. Flukes live in the host's circulatory system or liver. Tapeworms live in the host's digestive system.
It is harmful because motor vehicles spit out gas and like fumes. That can lead to pollution in the air.
It is beneficial because it helps people get to places they need to get to quicker
The answer is C.mushrooms and yeast<span>
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If caterpillars were removed, sparrows and frogs would have nothing to eat and it would thus disrupt their food change. Caterpillars also munch on grass to keep the growth under control.