Seagrass Ecosystem Quiz

What type of plant is a seagrass?

• Algae

• Moss

• Angiosperm

• Gymnosperm

Seagrasses play a crucial role in coastal ecosystems by providing habitat for various marine organisms. What term is used to describe this ecological function?

• Biodiversity hotspot

• Keystone species

• Trophic cascade

• Ecological niche

Seagrasses are adapted to thrive in environments with:

• Extremely low salinity

• Fluctuating salinity levels

• Hyper-saline conditions

• Freshwater conditions

Which of the following threats poses a significant risk to seagrass ecosystems?

• Overfishing

• Coastal development

• Climate change

• All of the above

Seagrasses are considered indicator species for:

• Coral bleaching

• Water quality

• Soil erosion

• Air pollution

What is the primary role of seagrasses in the carbon cycle of coastal ecosystems?

• Carbon fixation through photosynthesis

• Carbon release through respiration

• Carbon storage in their roots

• Carbon consumption by herbivores

Seagrass meadows are important for fisheries as they provide:

• Protection against storms

• Nursery areas for juvenile fish

• Food for large predators

• Breeding grounds for crustaceans

Seagrasses are threatened by human activities such as dredging and coastal construction. What is the term for this type of threat?

• Habitat fragmentation

• Invasive species

• Habitat destruction

• Pollution

The specialized root system of seagrasses is adapted to:

• Filter pollutants

• Anchor the plants

• Store nutrients

• Absorb oxygen from the air

Which of the following is a common threat to seagrass ecosystems related to human activities?

• Oil spills

• Desertification

• Glacier retreat

• Volcanic eruptions