Animal Digestion

What do filter feeders use to catch algae and small animals?

• Beaks

• Claws

• Modified gills

• Tentacles

What are animals that obtain nutrients and energy from food called?

• Detritivores

• Autotrophs

• Heterotrophs

• Omnivores

What is detritus made up of?

• Minerals and vitamins

• Fresh fruits and vegetables

• Microorganisms

• Decaying plant and animal material

What do herbivores eat?

• Seeds and fruits

• Plants or parts of plants

• Algae

• Meat

What do carnivores eat?

• Other animals

• Microorganisms

• Algae

• Plants

What do parasites feed on?

• Fresh fruits and vegetables

• Algae

• Detritus

• Tissues or body fluids

What is symbiosis?

• Migration

• Predation

• A close relationship between two or more species

• Competition between species

What do mutualistic nutritional relationships benefit?

• Neither participant

• The environment

• Both participants

• Only one participant

What is the tube called through which food passes for digestion in many invertebrates and all vertebrates?

• Digestive tube

• Food tube

• Gastrointestinal tract

• Digestive tract

What do one-way digestive tracts have?

• Three openings

• Two openings

• Four openings

• One opening