In hydrothermal vent communities,
A) there is no photosynthesis, but heat drives chemosynthetic producers.
B) energy is transferred in the form of heat between trophic levels.
C) temperature is the most important biotic factor.
D) producers depend on energy generated by consumers.
A
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What will be an ideal response?
The main difference between sound and light is
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A glacier covering at least 50,000 km2 and unconfined by topography:a
ice cap d. cirque b. continental glacier e. valley glacier c. moraine