Mollusks
Sponges
Food Web
Waves
Coastlines
100

How many living species of mollusks are there currently?

approximately 50,000
100

Where are sponges mainly found

The Ocean

100

What is the first level of any food chain called?

The Producer

100

the number of wave cycles that pass a fixed point in one second

Frequency

100

the area covered by water at high tide and exposed to the air at low tide

Intertidal Zone

200

Bivalves are often used as indicators of environmental quality. Describe why this is

they are filter feeders, meaning they actively draw large volumes of water through their bodies

200

What is the function of the Oscula?

The current of water exits after passing through the spongocoel

200

Why do scientists use Food webs to explain an ecosystem?

Scientists will often use food webs to better explain how an ecosystem functions

200

What are the two biggest causes of tidal waves

The Moon's gravity, and Tectonic Plates

200

where land, saltwater, and freshwater meet and mix.

An Estuary

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