subject
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

ansver
Answers: 3

Another question on Biology

question
Biology, 22.06.2019 05:30
Where can a dna be found in a prokaryotic cell
Answers: 1
question
Biology, 22.06.2019 15:30
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
Answers: 1
question
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
Answers: 1
question
Biology, 22.06.2019 21:00
Chitin is a chemical component of the cell walls
Answers: 1
You know the right answer?
As life began to populate earth’s surface, what change was seen in the atmosphere?

a. m...
Questions
question
Mathematics, 20.01.2020 04:31
question
History, 20.01.2020 04:31
question
Mathematics, 20.01.2020 04:31
question
Mathematics, 20.01.2020 04:31
Questions on the website: 13722359