Animals have a variety of adaptations, including trachea and gills, which allow this key process to occur. which provides the molecules necessary for cellular respiration and efficient atp synthesis? a. waste elimination b. nutrient absorption c. digestion d. gas exchange

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carbon atoms, hydrogen, oxygen, and nitrogen.

yes we can.   a lady urinates from her urethra.

flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.