U2 Marine Zones

Multiple Choice

Abiotic can be defined as?

• An organism that is alive

• Non-living parts of an ecosystem

• Living Parts of the environment

• A new kind of Pokemon that lives with Pikachu

Multiple Choice

Biotic can be defined as

• the living parts of an ecosystem

• non-living parts of an environment

• rocks and water

• snakes and water

Multiple Choice

Temperature is a(n) _________factor

• Biotic

• Abiotic

• living

• cool

Multiple Choice

Soil is an example of a(n)

• Biotic factor

• Abiotic factor

• competition

• herbivorous

Multiple Choice

Is rain an abiotic or biotic factor?

• abiotic

• biotic

Multiple Choice

The part of the continental shelf that is NEVER exposed at low tide is called the:

• Littoral zone

• Subtidal zone

• Intertidal zone

• Pelagic zone

Multiple Choice

the area between the high tide and the low tide mark

• benthic zone
• intertidal zone
• pelagic zone
• abyssal zone

Multiple Choice

Which zone supports the least amount of life?

• photic
• aphotic
• neritic
• ocean

Multiple Choice

Which ocean zone allows plants to grow??

• midnight zone

• photic zone

• twilight zone

• intertidal zone

Multiple Choice

organisms that live on or in the bottom

• benthos
• neuston
• littoral
• heterotrophs

Multiple Choice

the water area between the low tide mark and the edge of the continental shelf

• nautical zone
• benthic zone
• nueston zone
• neritic zone

Multiple Choice

the open water area beyond the continental shelf

• oceanic zone
• tidal zone
• bahyal zone
• abyssal zone

Multiple Choice

MOST sealife lives in the:

• Photic zone

• Twilight zone

• Midnight zone

• Deep zone

Multiple Choice

Phytoplankton are abundant in this ecosystem, because they are buoyant and float in the upper part of the water.

• Intertidal zone (high tide)

• Ocean (aphotic zone)

• Ocean (photic zone)

• Intertidal zone (low tide)

Multiple Choice

This fish pictured is an example of:

• Sessile life
• Benthic life
• Pelagic life
• Aphotic life

Multiple Choice

The intertidal zone of oceans

• surrounds continents
• is on the coastline
• has tides that rise and fall each day
• is the open ocean

Multiple Choice

What percentage of the ocean is taken up by coral reefs?

• 10-12 percent

• 25 percent

• less than one percent

• more than fifty percent

Multiple Choice

What are coral reefs often compared to?

• forests

• gardens

• rainforests

• deserts

Multiple Choice

Coral Reefs are found in

• tropical waters

• waters around the South pole only

• sub-tropical waters

• A and C

Multiple Choice

Where is the Great Barrier Reef located?

• Puerto Rico
• Florida
• Indonisia
• Australia

Multiple Choice

What is the primary factor responsible for the formation of coral reefs?

• Accumulation of calcium carbonate

• Action of wind erosion

• Erosion of volcanic rocks

• Deposition of iron oxide

Multiple Choice

What are some of the major threats to coral reefs?

• Lack of sunlight and nutrients

• Climate change, ocean acidification, overfishing, pollution, and destructive fishing practices

• Deforestation and land development

• Excessive coral reef tourism

Multiple Choice

What percentage of the ocean's biodiversity (different species) live in coral reefs?

• 10 -15%

• 20%

• 45%

• 25%

Multiple Choice

What is the biggest economic benefit of coral reefs?

• filtration
• habitat
• tourism
• protection of shoreline

Multiple Choice

What causes coral bleaching?

• oil spills

• warmer water temperatures

• overfishing

• red tide

Multiple Select

Choose the facts that demonstrate idea that the coral reefs are in danger of disappearing.

• Ocean ecosystems have great diversity.

• Fishing methods are upsetting the balance of the ecosystem

• Animals are using the branches to hide.

• Water pollution also damages water.

Multiple Choice

Do coral reefs have any chance of surviving?

• Yes, but only with our help

• No, they are dead

• Maybe, it depends on future events