While Wading in the Ocean, You Look Down into the Water

question 53

Multiple Choice

While wading in the ocean, you look down into the water and notice an umbrella-shaped, translucent animal. It swims by pulsing its body, and long tentacles trail behind it. One of them brushes your leg. Ouch! You feel a burning sensation where it touched you. To what phylum does this creature probably belong?

• A) Porifera
• B) Cnidaria
• C) Platyhelminthes
• D) Mollusca

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Definitions:

Heat Energy

The energy that is transferred between systems or objects with different temperatures, often perceived as warmth.

Conventional Heat Pump

is a system that uses electricity and refrigerants to transfer heat from one place to another, typically used for heating or cooling buildings.

Constant Temperature

A condition where the temperature of an environment or system remains unchanged over time.

Net Energy Efficiency

A measure of the total amount of energy produced relative to the energy consumed in the production process.