1. Animals which depend on tidal currents to bring food to them are known by a general name. They are called

a. encrusting organisms
b. fouling organisms
c. filter feeders
d. plankton

2. Pilings, whether under docks or elsewhere, often have predators lurking around them. This is because

a. they know their prey likes to be in those same places, too
b. pilings provide shady places for predators to hide
c. small minnows often form large schools around pilings
d. the piling allows predators to conserve energy by keeping the

3. The flowers of seagrasses almost aren't there. This is because

a. tidal currents disperse pollen
b. pollinating insects don't swim that well
c. shrimp and crabs, living in the grass, eat the flower petals
d. there's not enough light underwater to allow flowers to develope

4. Spring tides occur

a. when the sun and moon are at right angles to each other
b. every two weeks
c. when the sun and the moon are lined up with the earth
d. only (b) and (c) above are

   Need to Review......  LESSON 6 ARTICLE 

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