PA Envirothon Aquatics

Which of the following are the two greatest long-term threats to coral reefs?

• ocean acidification and overfishing

• damage by divers and predation

• climate change and acidification

• erosion and sea-level rise

• climate change and predation

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

NGSS.MS-ESS3-4

Although they only occupy 0.2% of the ocean floor, coral reefs provide many benefits. Which of the following is not one of these?

• They provide significant free oxygen.

• They serve as natural barriers.

• They protect coastlines from erosion.

• They provide habitats for one-quarter of all marine organisms.

• They provide one-tenth of the global fish catch.

If you find a new species of algae floating on the surface of a coastal zone, you would likely consider it a type of ____.

• benthos

• zooplankton

• nekton

• phytoplankton

• ultraplankton

Tags

NGSS.MS-LS1-6

A jellyfish would be considered a type of ____.

• benthos

• zooplankton

• nekton

• phytoplankton

• ultraplankton

Oysters, sea stars, and lobsters would be considered what type of organism?

• phytoplankton

• zooplankton

• nekton

• benthos

• decomposers

Strongly swimming consumers are most likely to be ____.

• phytoplankton

• zooplankton

• nekton

• benthos

• decomposers

Which of the following is not part of the saltwater or marine aquatic life zones?

• oceans

• estuaries

• inland wetlands

• coastal wetlands

• mangrove forests

Which of the following is a major cause of increasing ocean acidification?

• eutrophication

• construction of dams and levees

• rising sea level

• rising levels of CO₂

• decreasing dissolved oxygen

Which of the following is not part of the coastal zone?

• estuaries

• coastal wetlands

• bathyal zone

• intertidal zone

• coral reefs

Which of the following is a highly productive wetland that provides habitat for some 69 species of trees that can live in salty water?

• seagrass beds

• barrier beaches

• barrier islands

• coastal rain forests

• mangrove forests

Tags

NGSS.MS-LS2-4