Obtaining energy

Animal that live in water and strain their food from the water .

• Carnivores

• Filter feeders

• Herbivores

• Omnivores

The process that breaks down food into small molecules.

• Breathing

• Cellular respiration

• Digestion

• Circulation

Food digestion inside specialized cells in their bodies. The digested food then diffuses into other cells, where it used is called ...................................................................

• Intracellular digestion

• Extracellular digestion

• Cellular respiration

• Filter feeding

Cnidarians and flatworms have .........................................for digestion.

• digestive tube

• internal body cavity

Is  the process in which cells will use oxygen and digested food molecules to release the energy in food.

• Gas exchange

• Diffusion

• Cellular respiration

• Breathing

It is a process in which particles move from an area of high concentration to an area of low concentration.

• Cellular respiration

• External digestion

• Internal digestion

• Diffusion

Use their outer body covering for gas exchange.

• Vertebrates

• Cnidarians

• Arthropods

• Mollusks

….…..have book lungs, which are made of thin, tacked cell layers for breathing.

• Earthworm

• grasshopper

• Spiders

• Frog

Many invertebrates ,including arthropods and mollusks ,have open circulatory systems.

• True

• False

All vertebrates, segmented worms,some mollusks have closed circulatory systems.

• True

• False