coastal seas

Do you like to eat anchovies?

• Only on Ceasar salads

• I love them!

• I've never eaten them.

• I don't like them.

What is it called when animals work together in nature?

• Cooperation

• Competition

• Symbiosis

• Predation

What percent of ocean creatures live in less than 10% of the world's coastal water?

• 50%

• 25%

• 75%

• 90%

What two very important abiotic factors are responsible for the very productive coastal ecosystems?

• Ample Sunlight

• Adaquate Salinity

• Compatible Ph

• Nutrient availability

Why would seagrass absorb carbon dioxide (CO₂)?

• Seagrass absorbs CO2 to produce oxygen for fish.

• Seagrass absorbs CO2 to increase water temperature.

• Seagrass absorbs CO2 to create a habitat for marine life.

• Seagrass absorbs CO2 to perform photosynthesis.

What part of the ocean covers less than 1% of the ocean, but contains more than 25% of all ocean species?

• Open ocean

• Coral reefs

• Deep sea trenches

• Estuaries

What is the relationship between the reef sharks and little wrasse fish?

• Competition for food resources.

• No interaction; they live in separate habitats.

• Predatory relationship; sharks eat wrasse.

• Mutualism, a Symbiotic relationship; wrasse clean parasites off sharks.

What two increasing abiotic factors are causing great danger to the coral reefs?

• Increased fish populations and coastal development

• Rising sea levels and pollution

• Rising sea temperatures and ocean acidification

• Decreasing water salinity and increased sunlight