Choose a pair that correctly associates the mechanism for osmoregulation or nitrogen removal with the appropriate animal

A) metanephridium — flatworm
B) Malpighian tubule — frog
C) flame bulb — snake
D) exchange across the body surface — marine invertebrate


D

Biology & Microbiology

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The mordant is applied after the primary dye in the Gram stain

a. true b. false

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What is the difference between a tissue and an organ system?

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