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A deep canyon in the ocean floor is called a(n) _____________________.
Animals in the ______________ zone must be able to survive periods of being exposed to air as well as periods of being underwater.
Free-swimming animals that can move throughout the water column are called _______________________.
A coastal inlet or bay in which freshwater from rivers mixes with salty ocean water is called a(n) ___________.
The most common plant in a salt marsh is _________________________.
Are crabs, lobsters, and sponges examples of plankton, nekton, or benthos?.
The organisms that form the base of most open-ocean food webs are _________.
Coastal wetlands that feature short, gnarled trees with arching prop roots are called _____________.
Algae can only live in parts of the ocean that receive enough ____________________ to allow them to carry out photosynthesis.
A ____________ climate occurs where precipitation is less than potential evaporation.
Tropical grasslands that have distinct dry and wet seasons are called ____.
________ climates are found along the coasts of continents in the temperate zone..
A cool type of climate called _______ is found at the tops of mountains and is surrounded by other climate regions.
Permafrost and mosses, lichens, and wildflowers are common in which biome?
Trees do not grow in the _________, which has short, cool summers, bitterly cold winters, and permafrost.
Regions that receive less than 10 inches of rain annually are called _____.