Unit Test 2 - Coral Reef

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Test your knowledge about coral reefs and marine life with this fun quiz!

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Noel Sayco

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Unit Test 2 - Coral ReefVersion en ligne Test your knowledge about coral reefs and marine life with this fun quiz! par Noel Sayco 1 What do corals secrete to build reefs? a Sodium chloride b Magnesium c Calcium carbonate d Silica 2 What type of algae lives symbiotically with corals? a Zooxanthellae b Chlorella c Spirulina d Dunaliella 3 What causes coral bleaching? a Increased salinity b Pollution c Overfishing d Expulsion of zooxanthellae 4 What is a coral reef? a A type of fish habitat b A seaweed forest c A diverse underwater ecosystem formed by coral skeletons d A sandy beach 5 What is a consumer in an ecosystem? a An organism that produces food b A decomposer c A filter feeder d An organism that obtains energy by eating others 6 Which organisms are considered producers? a Organisms that create their own food b Filter feeders c Carnivorous animals d Predators 7 What do filter feeders do? a Hunt other animals b Graze on algae c Filter small particles from the water d Photosynthesize 8 What is a grazer? a An organism that feeds on stationary organisms like algae b A scavenger c A predator d A filter feeder 9 What defines a predator? a An organism that hunts and eats other animals b A decomposer c A plant d A producer 10 What does a food chain illustrate? a The size of organisms b The types of coral c How energy moves from one organism to another d The depth of the ocean 11 What is a food web? a A single food chain in an ecosystem. b A complex network of interconnected food chains in an ecosystem. c A method of measuring ocean pH. d A type of coral species. 12 What does nutrient load impact? a Wave strength. b Coral health. c Fish reproduction. d Ocean temperature. 13 What is ocean acidification caused by? a Excessive sunlight. b Increased salinity. c Absorbed carbon dioxide. d High nutrient levels. 14 Which coral species is highly vulnerable to bleaching? a Staghorn Coral. b Star Coral. c Brain Coral. d Fire Coral. 15 What do sponges compete with for space? a Algae. b Coral. c Plankton. d Fish. 16 What is the role of plankton in the food web? a They form the base of the food web. b They are top predators. c They provide shelter for fish. d They filter water. 17 What does pH measure? a Temperature of water. b Acidity or alkalinity. c Nutrient concentration. d Salinity levels. 18 Which coral species has some resilience to environmental changes? a Table Coral. b Brain Coral. c Star Coral. d Staghorn Coral. 19 What do algae provide for many reef species? a Shelter and protection. b Light and warmth. c Nutrients and minerals. d Oxygen and food. 20 What can sediment affect in the water? a Temperature regulation. b Nutrient distribution. c Oxygen levels. d Light penetration. 21 What is water clarity essential for? a Sunlight to reach photosynthetic organisms. b Preventing erosion of coral reefs. c Reducing carbon dioxide levels. d Increasing biodiversity in oceans. 22 What type of storms can cause physical damage to reefs? a Hurricanes. b Tornadoes. c Blizzards. d Earthquakes. 23 What greenhouse gas is absorbed by oceans, leading to acidification? a Ozone. b Carbon Dioxide. c Nitrous Oxide. d Methane. 24 What long-term changes impact reef ecosystems? a Seasonal variations. b Tidal patterns. c Lunar cycles. d Climate Change. 25 What is the mutually beneficial relationship between coral and zooxanthellae called? a Predation. b Parasitism. c Competition. d Symbiosis. 26 What term describes a community of organisms interacting with their environment? a Biome. b Population. c Habitat. d Ecosystem. 27 What process do plants and algae use to produce energy? a Respiration. b Photosynthesis. c Fermentation. d Decomposition. 28 What material do corals use to build their skeletons? a Magnesium. b Silica. c Calcium Carbonate. d Sodium Chloride. 29 What does biodiversity refer to in an ecosystem? a The size of the ecosystem. b The number of predators. c The variety of life within an ecosystem. d The amount of water present. 30 What process involves the wearing away of land affecting coral reefs? a Overfishing. b Erosion. c Sedimentation. d Pollution.

Unit Test 2 - Coral ReefVersion en ligne

Test your knowledge about coral reefs and marine life with this fun quiz!

par Noel Sayco

What do corals secrete to build reefs?

Sodium chloride

Magnesium

Calcium carbonate

Silica

What type of algae lives symbiotically with corals?

Zooxanthellae

Chlorella

Spirulina

Dunaliella

What causes coral bleaching?

Increased salinity

Pollution

Overfishing

Expulsion of zooxanthellae

What is a coral reef?

A type of fish habitat

A seaweed forest

A diverse underwater ecosystem formed by coral skeletons

A sandy beach

What is a consumer in an ecosystem?

An organism that produces food

A decomposer

A filter feeder

An organism that obtains energy by eating others

Which organisms are considered producers?

Organisms that create their own food

Filter feeders

Carnivorous animals

Predators

What do filter feeders do?

Hunt other animals

Graze on algae

Filter small particles from the water

Photosynthesize

What is a grazer?

An organism that feeds on stationary organisms like algae

A scavenger

A predator

A filter feeder

What defines a predator?

An organism that hunts and eats other animals

A decomposer

A plant

A producer

What does a food chain illustrate?

The size of organisms

The types of coral

How energy moves from one organism to another

The depth of the ocean

What is a food web?

A single food chain in an ecosystem.

A complex network of interconnected food chains in an ecosystem.

A method of measuring ocean pH.

A type of coral species.

What does nutrient load impact?

Wave strength.

Coral health.

Fish reproduction.

Ocean temperature.

What is ocean acidification caused by?

Excessive sunlight.

Increased salinity.

Absorbed carbon dioxide.

High nutrient levels.

Which coral species is highly vulnerable to bleaching?

Staghorn Coral.

Star Coral.

Brain Coral.

Fire Coral.

What do sponges compete with for space?

Algae.

Coral.

Plankton.

Fish.

What is the role of plankton in the food web?

They form the base of the food web.

They are top predators.

They provide shelter for fish.

They filter water.

What does pH measure?

Temperature of water.

Acidity or alkalinity.

Nutrient concentration.

Salinity levels.

Which coral species has some resilience to environmental changes?

Table Coral.

Brain Coral.

Star Coral.

Staghorn Coral.

What do algae provide for many reef species?

Shelter and protection.

Light and warmth.

Nutrients and minerals.

Oxygen and food.

What can sediment affect in the water?

Temperature regulation.

Nutrient distribution.

Oxygen levels.

Light penetration.

What is water clarity essential for?

Sunlight to reach photosynthetic organisms.

Preventing erosion of coral reefs.

Reducing carbon dioxide levels.

Increasing biodiversity in oceans.

What type of storms can cause physical damage to reefs?

Hurricanes.

Tornadoes.

Blizzards.

Earthquakes.

What greenhouse gas is absorbed by oceans, leading to acidification?

Ozone.

Carbon Dioxide.

Nitrous Oxide.

Methane.

What long-term changes impact reef ecosystems?

Seasonal variations.

Tidal patterns.

Lunar cycles.

Climate Change.

What is the mutually beneficial relationship between coral and zooxanthellae called?

Predation.

Parasitism.

Competition.

Symbiosis.

What term describes a community of organisms interacting with their environment?

Biome.

Population.

Habitat.

Ecosystem.

What process do plants and algae use to produce energy?

Respiration.

Photosynthesis.

Fermentation.

Decomposition.

What material do corals use to build their skeletons?

Magnesium.

Silica.

Calcium Carbonate.

Sodium Chloride.

What does biodiversity refer to in an ecosystem?

The size of the ecosystem.

The number of predators.

The variety of life within an ecosystem.

The amount of water present.

What process involves the wearing away of land affecting coral reefs?

Overfishing.

Erosion.

Sedimentation.

Pollution.

Unit Test 2 - Coral Reef

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