Crustacean Ecology and Importance

The video explores the fascinating world of crustaceans, a diverse group of arthropods inhabiting various environments. It highlights their key characteristics, such as exoskeletons and jointed limbs, and their vital ecological roles in marine and freshwater ecosystems. The video also discusses the importance of crustaceans to humans as a food source and the threats they face from overfishing and pollution.

What environments do crustaceans inhabit?

• Various aquatic environments worldwide

• Only the depths of the ocean

• Only terrestrial ecosystems

• Only freshwater habitats

Which feature is common among all crustaceans?

• Wings

• Exoskeleton

• Fur

• Feathers

What is a distinctive feature of crustacean appendages?

• They are smooth

• They are non-jointed

• They are feathered

• They are biramous

How do crustaceans contribute to nutrient cycling?

• By photosynthesis

• By consuming only plants

• By feeding on dead organic matter

• By producing oxygen

Which crustaceans are key components of marine food chains?

• Lobsters and crabs

• Mantis shrimp and ghost shrimp

• Krill, copepods, and amphipods

• Shrimp and crayfish

What role do crustaceans play in coral reef health?

• They destroy coral reefs

• They promote water circulation

• They block sunlight

• They consume coral

Which crustaceans are highly prized for their meat?

• Mantis shrimp

• Krill

• Shrimp, crab, lobster, and crayfish

• Copepods

What is a significant threat to crustacean populations?

• Overfishing and pollution

• Lack of food

• Excessive sunlight

• Predation by birds

How does pollution affect crustaceans?

• It negatively impacts their habitats and health

• It has no effect

• It makes them more colorful

• It enhances their growth

Why are crustaceans important to ecosystems?

• They are not important

• They disrupt ecosystems

• They only serve as food for humans

• They maintain ecological balance