Which of the following have the most efficient lungs: amphibians, mammals or birds? Explain your
answer. What will be an ideal response?
Amphibians have the simplest lung - it is not convoluted and thus has a low surface area. In addition,
air is pushed into their lungs which limits flow. Mammals have far more convoluted lungs to increase
surface area and have the anatomy to draw air into the lung. However, there is still a delay as air
comes in and then goes out. Birds on the other hand have convoluted lungs and a system to draw air
continually over the absorptive surface of the lung.
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The organelle involved in the oxygen-requiring process by which the energy harvested from macromolecules is used to generate ATP is the:
A. chloroplasts. B. ER. C. nucleus. D. lysosome. E. mitochondria.
Carbon dioxide dissolves in water to form ____
Fill in the blank with the appropriate word.
Congestive heart failure occurs when the heart becomes less efficient at pumping blood and blood backs up in the veins and capillaries.
a. true b. false
An organism's ability to detect stimuli from either the internal or external environment is called
A) natural selection. B) DNA. C) responsiveness. D) evolution. E) mutation.