Aquatic Biodiversity

The single-celled algae found in aquatic ecosystems are known as

• phytoplankton.

• zooplankton.

• seaweed.

• kelp.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

In which biome do these plants (seagrass) survive? 

• wetland

• ocean

• freshwater

An ecosystem where water covers the soil or water is near the surface of the soil is called

• a desert

• an ocean

• an estuary

• a wetland

Take a look at the diagram and identify Zone A

• Photic Zone

• Aphotic Zone

• Neritic Zone

• Intertidal  Zone

Take a look at the diagram and identify zone 6

• Abyssal Zone

• Bathyal Zone

• Deep sea trenches (Hadal Zone)

• Intertidal zone

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.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

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.

• All of the above.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is true regarding mangroves?

• There must be a freshwater input into a mangrove in order for plant life to survive.

• Mangroves contain rapids that allow for the mixing of water and air making it a highly productive ecosystem

• Mangrove plants are salt tolerant and protect the shoreline from erosion.

• Mangroves have an aphotic zone that has little photosynthetic activity occurring.

Phytoplankton live near the surface of the water because

• they eat krill which only are abundant near the surface of the water

• there are less predators near the surface of the ocean

• sunlight cannot reach great depths and they need it for photosynthesis

• they are blown there from the land and end up floating on the surface of the water until they are consumed

Tags

NGSS.MS-LS1-6

Why is the open ocean considered one of the most productive areas for biodiveristy?

• phytoplankton and other smaller organisms are abundant and feed entire foodchains

• there is little to no competition between species

• open oceans are not susceptible to things like climate change or pollution at all

• none of these

Tags

NGSS.MS-LS2-1