What are the two most abundant gases in our atmosphere?
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a. nitrogen and oxygen
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b. water vapor and oxygen
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c. carbon dioxide and nitrogen
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d. oxygen and hydrogen

4the indian leaf butterfly has traits that allow it to resemble a leaf. the bright colors of the monarch butterfly indicate that the butterfly tastes bad and can be poisonous. how does the appearance of these butterflies them to survive? f the indian leaf butterfly is able to avoid predators while the monarch butterfly warns predators away. g. the indian leaf butterfly frightens predators away while the monarch butterfly poisons predators before they can eat it. h both butterflies rely on camouflage to avoid predation. j both butterflies cooperate with one another to avoid predation.

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?