Question

If there was a sudden drop in temperature after the evolution of the first living cells, predict how that might have affected the changes in the atmosphere and the evolution of cyanobacteria and other autotrophs. Explain your answer.

Here are my answers based off of what I learned in the lesson

Depending on how drastic the temperature drop was, it would be too cold for cyanobacteria and other autotrophs to grow. If it is too cold for cyanobacteria and other autotrophs to grow, then photosynthesis would not be able to take place. If photosynthesis could not take place, the atmosphere w

Answer 1

...If photosynthesis could not take place, the atmosphere would have less oxygen.

Answer 2

hi welcome to openstudy!!:D
u r absolutely right..:)

Answer 3

Awesome, thank you! I have another question, if you could pleassee help me.

Based on the conditions of early Earth, what conclusion can you draw about the amount of anaerobic respiration that was occurring at Earth’s beginning? Explain your answer.

Here I am just confused about what they mean by the "conditions of early Earth" I know what anaerobic respiration was, buuutt yeahh.

Answer 4

i would like 2 add....there are a few plants which do survive at low temperatures...so make a mention of this too

Answer 5

Okay, thanks for mentioning that.

Answer 6

ohh yaa....if they r linking to anaerobic respiration then i think they mean low or no oxygen in d atmosphere...

Answer 7

So that would mean that there was probably a lot of anaerobic respiration going on, right?

Answer 8

i think...i maybe wrong though...

Answer 9

@thomaster can help u...

Answer 10

Yea you're right, there were low oxygen levels in the air so every organisms used anaerobic respiration those days.

Answer 11

Okay, thank you guys, i really appreciate it!

Answer 12

happy 2 help:)