Flashcards: Animal Support and Respiration Strategies — 16 cards

Endoskeleton — definition?

Internal support made of bone or cartilage.

Exoskeleton — function?

Protects and supports the organism externally.

Hydrostatic skeleton — mechanism?

Fluid pressure within a cavity supports movement.

Organism survival needs — key?

Oxygen, nutrients, and water.

Coelom — role?

Houses and protects internal organs.

Bone — characteristic?

Rigid, mineralized support tissue.

Cartilage — difference from bone?

Flexible, less mineralized support tissue.

Gills — function?

Extract oxygen from water.

Lungs — role?

Extract oxygen from air for terrestrial animals.

Nutrient movement — process?

Digestion, absorption, excretion.

Crop — purpose?

Stores food temporarily in some animals.

Gizzard — function?

Mechanically grinds and crushes food.

Regurgitation — role?

Expels indigestible material like owl pellets.

Enzymes — role?

Speed up breakdown of food molecules.

Owl pellet — formation?

Mass of indigestible prey parts regurgitated.

Respiratory diffusion — in?

Simple organisms and in structures like gills and lungs.