Aquatic Environments Practice Test

Which of the following is the best description of an estuary?

• a coastal wetland formed where a river meets the ocean

• a coastal wetland that is dominated by salt tolerant trees

• a coastal wetland that is characterized by mineral rich mud

• a limestone ridge that provides a home for a great diversity of species

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

An estuary can support abundant life for all of the following reasons except that an estuary

• is a nutrient map

• maintains a constant salinity level

• receives plenty of sunlight

• has abundant plankton and rooted plants

For which of the following animals are coastal wetlands not a habitat?

• a coral polyp

• a tiger

• a dolphin

• an oyster

What is the primary relationship between coral and algae?

• coral feed on algae

• algae feed on coral

• algae provide a surface to which coral can attach

• algae live within coral cells

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Coral reefs are threatened today primarily because of

• the endangerment of species that coral rely on

• the overabundance of algal growth

• the inability of coral to adapt to changes in its prey

• human activities

Tags

NGSS.HS-LS2-7

Swamps are commonly found on

• rocky hillsides

• flat, poorly drained land

• mountain peaks

• bottoms of ponds or lakes

The type of plankton that produces most of the food in an aquatic ecosystem is called

• nekton

• benthos

• phytoplankton

• zooplankton

Tags

NGSS.MS-LS1-6

In which aquatic zone would you be likely to find cattails and reeds?

• littoral

• eutrophic

• benthic

• none of the above

What are the two main types of freshwater wetlands?

• lakes and ponds

• rivers and streams

• littoral zones and benthic zones

• marshes and swamps

Which ecosystem has the highest level of salinity?

• salt marsh

• brackish marsh

• river

• pond