Flashcards in Ch. 7 Key Terms. Deck (11)
are organisms that cannot swim against currents, so they are drifters
are free-swimming organisms, such as fish and whales
are bottom-dwellers, such as mussels, worms, and barnacles.
near the shore, aquatic life is diverse and abundant
the bottom of a pond or lake, which is inhabited by decomposers, insect larvae, and clams
is an increase in the amount of nutrients.
is an area in which fresh water from a river mixes with salt water from the ocean
In estuaries, where rivers deposit their load of mineral-rich mud, salt
Dense growths of mangrove trees in swampy areas called mangrove swamps
Barrier islands, such as the one in Figure 2.4, often run parallel to sandy shores. These islands help to protect the mainland and the coastal wetlands from storms and ocean waves and often provide habitat for wildlife