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Feeding digestion
Respiration
Circulation
Excretion
Anything goes
100
catch algae and small animals by using modified gills or other structures
What is a filter feeder
100
maintains a difference in the relative concentrations of oxygen and carbon dioxide
What is a respiratory structure?
100
a hollow, muscular organ that pumps blood around the body
What is a heart?
100
elimination of metabolic wastes
What is excretion?
100
enormous surface for gas exchange
What is alveoli?
200
detritus
What do detritivores feed on?
200
lancelets, some amphibians, and sea snakes
What is a example of a aquatic chordate?
200
arthropods and mollusks
What organisms have open circulatory systems?
200
concentration of ammonia can kill most cells
What is a ammonia problem?
200
skin, mantle cavities, book lungs, and tracheal tubes.
What does terrestrial animals include?
300
An animal that eats other animals
What is a carnivore?
300
feathery structures that expose a large surface area that are selectively permeable membrane to water.
What are gills?
300
where blood is partially contained within a system of blood vessels as it travels through the body
What is a open circulatory system?
300
kidneys
What do animals use to separate waste and excess water form the body?
300
pumps blood out of the heart and to the gills
What is a ventricle?
400
Animal that eats plants
What is a herbivore?
400
organs that exchange oxygen and carbon dioxide
What are lungs?
400
where blood circulates entirely within the blood vessels
What is a closed circulatory system?
400
tubelike excretory structures that filter body fluid
What is a nephridia?
400
a single pump that forces the blood around the body in one direction
What is a single loop circulation?
500
a symbiotic bacteria digest cellulose?
What is a rumen?
500
animals that rely on diffusion of oxygen and carbon dioxide through their outer body coverage
What is a aquatic invertebrate?
500
receives blood from the body
What is a atrium?
500
Malpighian tubules
What concentrates the wastes and add them to digestive wastes traveling through the gut?
500
two- pump circulation
What is a double loop circulation?