Exploring Coral Reefs

Exploring Coral Reefs

9th Grade

10 Qs

quiz-placeholder

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Exploring Coral Reefs

Exploring Coral Reefs

Assessment

Quiz

Biology

9th Grade

Easy

Created by

Ferdinand Estrella

Used 1+ times

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10 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What are Corals? Corals are marine invertebrates that belong to the phylum Cnidaria. They exist as colonies of tiny organisms known as polyps, which secrete calcium carbonate to form the hard skeletons that create the structure of coral reefs.

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do Coral Polyps Feed? Coral polyps have specialized cells called nematocysts, equipped with tiny harpoon-like structures that capture prey. Additionally, corals engage in a symbiotic relationship with algae called zooxanthellae, which provide the polyps with nutrients through photosynthesis.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What Types of Corals Exist? There are two main types of corals: hard corals (scleractinians), which build the reef structure, and soft corals (alcyonaceans), which lack a hard skeleton. Each type contributes to the overall biodiversity and resilience of coral reef ecosystems.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Why are Coral Reefs Important? Coral reefs serve as vital habitats for countless marine species. They protect coastlines from erosion, support fisheries, and contribute significantly to global biodiversity. Additionally, coral reefs are essential for the economies of many coastal communities through tourism and fishing.

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How are Coral Reefs Formed? Coral reefs form over long periods as coral polyps deposit calcium carbonate, creating a complex and diverse ecosystem. Fringing reefs, barrier reefs, and atolls are the three main types of coral reefs, each forming under different geological conditions.

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

What Threatens Coral Reefs? Coral reefs face various threats, including climate change-induced coral bleaching, overfishing, pollution, and destructive fishing practices. These factors compromise the health and resilience of coral ecosystems worldwide.

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

How does Climate Change Impact Coral Reefs? Climate change poses a severe threat to coral reefs through rising sea temperatures, leading to coral bleaching. This phenomenon occurs when the symbiotic relationship between corals and zooxanthellae breaks down, resulting in the expulsion of algae and the whitening of corals.

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