U5 Crustaceans

Front

What are Crustaceans?

Back

Crustaceans are a diverse group of arthropods that include animals such as crabs, lobsters, shrimp, and krill. They typically have a hard exoskeleton, jointed limbs, and are primarily aquatic.

Front

Define the term 'Exoskeleton'.

Back

An exoskeleton is a rigid external covering that provides support and protection to an animal's body, commonly found in arthropods like crustaceans.

Front

What is the primary habitat of most crustaceans?

Back

Most crustaceans are found in marine environments, but some species also inhabit freshwater and terrestrial ecosystems.

Front

What is the role of krill in the marine ecosystem?

Back

Krill are small, shrimp-like crustaceans that serve as a crucial food source for many marine animals, including whales, seals, and fish.

Front

Identify a unique feature of Mantis Shrimp.

Back

Mantis shrimp are known for their powerful claws that can strike with incredible speed and force, and they possess complex eyes that can see polarized light.

Front

What distinguishes Decorator Crabs from other crabs?

Back

Decorator Crabs are known for their unique behavior of camouflaging themselves by attaching materials from their environment, such as algae and sponges, to their shells.

Front

What is the significance of the carapace in crustaceans?

Back

The carapace is a hard shell that covers the cephalothorax of crustaceans, providing protection and support for the animal's body.

Front

Explain the term 'molting' in crustaceans.

Back

Molting is the process by which crustaceans shed their exoskeleton to grow. This process allows them to increase in size and is crucial for their development.

Front

What are the main differences between shrimp and krill?

Back

Shrimp are generally larger and have a more elongated body compared to krill, which are smaller and have a more robust, shrimp-like appearance.

Front

Describe the feeding habits of most crustaceans.

Back

Most crustaceans are omnivorous, feeding on a variety of organic materials, including plankton, algae, and detritus.