1 An estuary is another kind of habitat. Which of the following describes an
estuary
A Land area that drains water into a lake, river or pond.
B. Underground system that provides drinking water to an area.
C. Large body of saltwater that covers most of the Earth's surface.
D. Area where a river meets the ocean, where in mixing of freshwater and
saltwater happens
2. If the planktons are removed from the estuary, what may happen to the
estuarine food web?
A Planktons are producers so their removal may not have an effect.
B. The other animals in the estuary will have to find other food sources.
C. Removal of any organism like the plankton will greatly affect the
ecosystem
D. Filter feeders like oysters and clams don't depend on the presence of
plankton
3. What kind of habitat is the ocean covered and uncovered as the tide goes in
and out
A Estuaries
B. Food chain
C. Food web
D. Intertidal zone
4. Organisms that live in the intertidal zone are adapted to crashing waves and
tidal changes. How do barnacles prevent being washed away?
A They open their shells.
B. They cling tightly to rocks.
C. Barnacles go with the waves.
D. They store much salt in their bodies​