BIOL-1240 Excretory System Ch 41

Excretory systems maintain homoestasis through all of the following except:

• adjusting the concentrations of various substances in body fluids

• removing excess water from the body.

• elimination

• the production of urine.

• All of the above

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NGSS.HS-LS1-3

Which of the following is considered to be a nitrogenous waste of animals?

• feces

• carbon dioxide

• ammonia

• water

• sugars

How do terrestrial

animals prevent toxic accumulation of ammonia in their tissues?

• They use ammonia in other metabolic processes.

• They convert ammonia to less toxic forms.

• They vent eliminate ammonia across the body wall.

• They eliminate ammonia rather than excrete it.

• Animals do not produce ammonia.

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NGSS.HS-LS1-3

Which of the following is not an advantage of uric acid excretion in terrestrial animals?

• Uric acid can be excreted as a paste, thereby conserving water.

• Uric acid is not toxic and can be safely stored.

• Uric acid can stored in the eggs of animals without harm to the embryos.

• Uric acid is soluble in water and can be easily excreted.

• Uric acid can be excreted along with feces in some animals.

Osmoconformers would most likely be found in:

• estuaries

• coastal zones that receive freshwater

• freshwater

• terrestrial habitats

• open ocean waters

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NGSS.MS-LS1-5

An animal adapted to life in a coastal environment where fresh water enters the ocean:

• would have excretory structures to remove excess salt.

• would have excretory structures to remove excess water.

• would drink large amounts of water.

• would likely be an osmoregulator.

• More than one of the above.

Tags

NGSS.HS-LS1-3

The major function of the protonephridia in the flatworm is to

• conserve water.

• conserve salts,

• eliminate waste materials such as ammonia and urea.

• eliminate excess water.

• regulate the pH of the gastrovascular cavity.

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NGSS.HS-LS1-3

The main difference between protonephridia and metanephridia is:

• protonephridia are involved in osmoregulation, while metanephridia are involved in excretion.

• protonephridia consist of blind flame cells, while metanephridia consist of tubules open at both ends.

• protonephridia are involved in excretion, while metanephridia are involved in osmoregulation.

• protonephridia consist of tubules open at both ends, while metanephridia consist of blind flame cells.

• None of the above

Metanephridial organs are common in:

• mollusks

• flatworms

• cnidarians

• sponges

• insects

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NGSS.MS-LS4-2

n contrast to the excretory system of annelids, the excretory system of insects:

• has many openings on the body wall.

• contains flame cells.

• is not connected to the gut.

• produces uric acid that is excreted from the rectum.

• relies on diffusion across the body wall.