Why doesn’t photosynthesis occur in deep ocean water?

There are not enough nutrients.

The salinity level of the water is too high.

The water temperature is too cold.

Ecosystems have producers, consumers, and decomposers. Why are producers important in an ecosystem?

They produce food for consumers.

They break down remains of dead plants.

They produce food for other producers.

They consume food for other consumers.

People's actions can change an ecosystem. Which of the following changes is helpful to an ecosystem?

setting aside land areas as animal refuges.

letting large herds of animals graze on farmland.

introducing nonnative plants into an area.

clearing forests to make lumber.

An alligator lives in a swamp with deer, birds, fish, trees, and other plants. The alligator eats a bird that eats seeds and plants. What is the original source of the energy that the alligator gets from eating the bird?

The sunlight that the plants absorb

The energy that the bird creates.

The heat from the air in the swamp.

What is the significance to the Mangroves?

They protect shorelines from bad weather

mangrove forests are home to a large variety of fishes

Which of the following is the best definition for estuary?

Areas along the coast where fresh water from rivers mixes with salt water from the ocean.

Narrow band of coastline that exists between high and low tide.

Flowing fresh water containing rapids.

Freshwater aquatic areas that are saturated by water for at least part of the year.

What is coral bleaching?

When the algae inside the coral die due to disease, high water temperature or lower ocean pH.

When the algae inside the coral die due to overharvesting.

When sediments and pollution remove the color from a coral reef.

When the limestone skeleton remains after the coral has been foraged by fish.

What are some problems associated with low tide?

Waves crashing on shore may affect an organism's ability to hold on.

Organisms may dry out due to lack of water.

Organisms are exposed to direct sunlight.

Mangrove Forests

Authored by Sara Connors

Biology, Other Sciences

7th - 8th Grade

NGSS covered

Used 50+ times

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31 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mangrove swamps occur in warm climates near the __________________.

forest

oceans

lakes

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Salinity means the level of _______________in the water.

oxygen

salt

nitrogen

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Brackish means that the water is

only salt water

a mix of fresh and salt water

only fresh water

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Estuaries become a __________________ trap which helps plant and animal life flourish.

death

oxygen

nutrient

Most ocean pollution is caused by

mans activities on land.

mans activities in the ocean.

none of these.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Estuaries form where

a lake evaporates

a river meets the sea

a river becomes dammed

a wetland becomes filled in

Which brackish watery biome has some areas that are salty, and some areas that are freshwater?

freshwater

coral reef

estuary

ocean

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Mangrove Forests

Mangrove swamps occur in warm climates near the __________________.

Salinity means the level of _______________in the water.

Brackish means that the water is

Estuaries become a __________________ trap which helps plant and animal life flourish.

Most ocean pollution is caused by

Estuaries form where

Which brackish watery biome has some areas that are salty, and some areas that are freshwater?

The bottom of the ocean

Microscopic organisms that float near the surface of the water are called

The plankton that are microscopic and plant like are called

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