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13 Cards in this Set
- Front
- Back
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the systematic rise and fall of ocean water every six hours |
tide |
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a tide in which there is less of a difference between high and low tides |
neap tide |
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a tide which is higher or lower than normal tides |
spring tide |
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barnacle - plant or invertebrate |
invertebrate |
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seaweed - plant or invertebrate |
plant |
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mussel - plant or invertebrate |
invertebrate |
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sea anemone - plant or invertebrate |
invertebrate |
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crab - plant or invertebrate |
invertebrate |
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sea urchin - plant or invertebrate |
invertebrate |
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List the organisms found in each or the three intertidal zones. |
High - barnacles Middle - seaweed, mussels, whelk Low - kelp, sea urchins, sea anemones |
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Explain what causes tides. |
The gravity of the moon and the sun pulling on the earth's waters |
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How are algae helpful to people? |
as fertilizer as a source of iodine in food in drug products |
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Where are the living things on a sandy shore? |
Most are covered by the sand. |
