Section 7

Question 1

saltwater aquatic life zones

Answer 1

oceans, mangrove forests, coastal marshes, coral reefs, coastlines, and estuaries

Question 2

freshwater aquatic life zones

Answer 2

lakes, ponds, streams, rivers, and inland wetlands.

Question 3

oceanic subzones

Answer 3

pelagic, epipelagic, mesopelagic, abyssopelogic

Question 4

nekton

Answer 4

all organisms that sqim

Question 5

benthic

Answer 5

bottom dwelling organisms

Question 6

marine organisms are classified by ____ ____.

Answer 6

living areas

Question 7

coral reefs

Answer 7

warm waters, high salinity, diverse, stenothermic (tolerates narrow temperature change), buffers for islands from waves

Question 8

oceans provide

Answer 8

moderation of climate, CO2 absorption, cycling of nutrients, water treatment, and dilution of pollutants

Question 9

lentic

Answer 9

non-flowing bodies of water

ex: lakes, ponds, and inland wetlands

Question 10

lotic

Answer 10

flowing bodies of water

ex: streams, rivers, creeks, and marshes

Question 11

littoral zone

Answer 11

shallow water near shore, high diversity, filled with plankton

Question 12

limnetic zone

Answer 12

primary photosynthetic, majority of plankton, neuston, and nekton

Question 13

profundal zone

Answer 13

deep open waters, too dark for photosynthesis

Question 14

benthic zone

Answer 14

aphotic zone, inhabited by epifauna, and infauna

Question 15

oligotrophic system

Answer 15

hard for survival

poor nutrient quality

Question 16

eutrophic system

Answer 16

encourages survival

large supply of primary producers, nutrients

Question 17

earth has less than ___ bodies of freshwater

Answer 17

1%