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Aquatic Ecosystems Test

Last updated about 8 years ago

40 questions

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Question 40

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What color of the electromagnetic spectrum (light) travels the furthest in water?

Red

White

Blue

Most organisms live in the ____________________zone.

photic

aphotic

bentic

When temperature and currents move nutrients from the bottom of the ocean to the top it is called___________

aphiotc

thermocline

upwelling

The process that bacteria use to make their own food at deep sea vents.

photosynthesis

chemosynthesis

Temperature, light and oxygen are examples of _______________factors

biotic

abiotic

Freshwater has _______amount of salt in it.

more than 1 ppm

10 ppm

less than 1 ppm

more than 30 ppm

Which natural disaster is made worse when people destroy esturies?

drought

flooding and storm damage

earthquakes

hurricanes

What are areas where freshwater meets saltwater called?

wetlands

coastal byways

intertidal zones

esturaries

What are coral reefs?

rock

deposits of bones of dead fish

outside skeletons of tiny, soft-bodied animals

plants

What special adaptations do intertidal species have?

to resist UV rays

survive heavy waves

survive exposure of air

all the above

How do fish use oxygen from the water?

aerobic respiration

anaerobic respiration

Wetlands and esturaries purify water and filter out_______

salt

dead organisms

pollution

waste products

This is the ocean shore between the lowest low tide and the highest high tide.

estuary

shore erosion

intertidal zone

intermoon zone

Temperature, sunlight, and dissolved oxygen are all important factors in what?

land ecosystems

deserts

aquatic ecosystems

grasslands

The distribution of life in aquatic ecosystems is determined by geography, light, depth, temperature, salinity, and dissolved oxygen.

True

False

Where is most dissolved oxygen located

photic zone

aphotic zone

benthic zone

Zone in freshwater ecosystems that is close to shore and contains many invertebrates.

littoral zone

limnetic zone

Zone in freshwater ecosystems that have no plants and in open water.

littoral zone

limnetic zone

Aquatic ecosystem that recharges the aquifers and filters pollutants.

wetlands

estuaries

mangrove forest

kelp forest

Type of wetland that has shallow water and shrubs and trees. Rich in nutrients

swamp

marsh

bog

fen

What part of your pollution lab represents excess phorsphorus and nitrogen in water?

water

salt water

soap water

fertilizer water

Ecosystem that prevents soil erosion and flooding.

coral reefs

estuaries

rivers

wetlands

Organisms living in this type of ecosystem can tolerate high changes in salinity and temperature.

coral reefs

estuaries

rivers

wetlands

Type of tree that the roots can either grow up to capture oxygen or grow down to help it with support.

mangrove

kelp

maple

pine

Type of force that allows objects to float and is determined by density.

bouyant force

kinetic force

gravitational force

electrical force

______________________________prevent fish migrations, feeding and leads to salination.

dams

agriculture practices

urban development

river dredging

____________________cause destruction of habitat, disease, parasites, and competition.

overfishing

forestry practices

dams

invasive species

______________________________is caused by excessive food demands, market pressure, no management policies, and technology.

overfishing

forestry practices

dams

invasive species

Starting a forest is called_______

afforestation

deforestation

______________changes hydrology, ambient water temperatures, chemistry, turbidiy, reduced light penetration, algae blooms, and acidification.

overfishing

forestry practices

dams

invasive species

Salinity and temperature have an effect on the oceans_______

density

gravity

wind

tides

The ocean can be divided into 3 zones based on thier _______________.

biodiversity of life

distance from shore

wind currents

temperature currents

Which zone has three parts?

photic zone

aphotic zone

benthic zone

Which zone in the ocean ecosystem extinds from the low tide to the edge of the continental shelf?

Intertidal ecosystem

neritic ecosystem

Open-ocean ecosystem

Which ocean ecosytem has extremes in temp, moisture, sun exposure, salinity, predation, and nutrients?

Intertidal Ecosystem

Neritic Ecosystem

Open ocean ecosystem

What are the stinging tentacles that coral have which allows it to feed?

kelp

nematocysts

zooxanthellea

pytoplankton

This ocean ecosystem that has sea otters as their keystone species

neritic ecosystems

open oceans

kelp forest

coral reefs

This ocean ecosystem is at the edge of the continental shelf and contains few nutrients and 90% of the water.

intertidal ecosystem

neritic ecosystem

open-ocean ecosystem

What are the primary producers in the open ocean food chain?

nematocysts

zooxanthellea

photoplankton

bioluminescenes

Which part of the open ocean zone has rpredators that scavenge carcasses or organic detritus?

photic open ocean zone

aphotic open ocean zone

benthic open ocean zone