As life began to populate earth’s surface, what change was seen in the atmosphere?
a. m...
Biology, 29.01.2020 21:59 macybarham
As life began to populate earth’s surface, what change was seen in the atmosphere?
a. more oxygen was consumed
b. more carbon dioxide was added
c. more carbon dioxide was consumed
d. more oxygen was added
Answers: 3
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Which one is an advantage of external fertilization a. the offspring are genetically identical to the parents b. more eggs can be fertilzed at one time c. more sperm can be released at one time d. more protection is available for developing plz
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Biology, 22.06.2019 17:10
Organisms may contain up to five levels of organization within their bodies. which level of organization is shown by the liver? a. tissue b. organ c. organism d. organ system
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