Question

Do you agree with my answer?

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.

Answer 1

If there was a sudden drop in temperature after the evolution of the first living cells, the rate of fermentation would drop due to the temperature. My prediction would have to include the data, which is on the graph. The question does not include a temperature to base my hypothesis on so I would have to conclude that if the temperature suddenly dropped to 35ºC to -20ºC, that the initial cells would die, and that the atmosphere and the evolution of cyanobacteria would change drastically.

The atmosphere and the evolution of cyanobacteria would dissipate or completely disappear due to the lacking of the cyanobacteria. The definition of cyanobacteria is “a division of microorganisms that are related to the bacteria but are capable of photosynthesis. They are prokaryotic and represent the earliest known form of life on the earth.” – Oxford American Dictionaries. “Cyanobacteria can be found in almost every conceivable environment, from oceans to fresh water to bare rock to soil.”- Wikipedia. From those two definitions it shows that Cyanobacteria is a part of what makes up everything that is living on earth. Life as we know it would have been changed if there was a sudden drop in temperature after the evolution of the first living cells.

Answer 2

The graph:

This graph shows the relationship between anaerobic respiration, also called fermentation, and temperature. Temperature is charted along the x-axis from negative twenty degrees Celsius to positive sixty degrees Celsius. The y-axis shows amount of fermentation in percentages from zero to one hundred percent.

At negative twenty degrees Celsius, the amount of fermentation is at zero. At positive five degrees, the amount of fermentation has increased to 40, and at fifteen degrees the amount of fermentation is 50. At 25 degrees the amount of fermentation is 85, and at 35 degrees the amount of fermentation peaks at 100. The fermentation amounts decrease steadily from 100 at 35 degrees down to zero at 60 degrees.

Answer 3

If there was a sudden drop in temperature after the evolution of the first living cells, the rate of fermentation would drop due to the temperature. My prediction would have to include the data, which is on the graph. The question does not include a temperature to base my hypothesis on so I would have to conclude that if the temperature suddenly dropped to 35ºC to -20ºC, that the initial cells would die, and that the atmosphere and the evolution of cyanobacteria would change drastically.

The atmosphere and the evolution of cyanobacteria would dissipate or completely disappear due to the lacking of the cyanobacteria. The definition of cyanobacteria is “a division of microorganisms that are related to the bacteria but are capable of photosynthesis. They are prokaryotic and represent the earliest known form of life on the earth.” – Oxford American Dictionaries. “Cyanobacteria can be found in almost every conceivable environment, from oceans to fresh water to bare rock to soil.”- Wikipedia.

From those two definitions it shows that Cyanobacteria is a part of what makes up everything that is living on earth. Life as we know it would have been changed if there was a sudden drop in temperature after the evolution of the first living cells.

Answer 4

what do you think?

Answer 5

Hey Bonez. Saw your chat message so taking a look :) Sorry I haven't been around lately just got distracted by assignments and stuff.. well mostly stuff (and yesterday I was stuck at uni with no computer arg!) Anyway...

After reading through this I have a few suggestions and a few ideas :)

In the second paragraph you say "due to the lacking of the cyanobacteria" - might sound a little better if you say "reduction in cyanobacteria numbers".

"that the atmosphere and the evolution of cyanobacteria would change drastically" - you will need to explain this sentence, how does it change the atmosphere and the evolution of bacteria? Have a read of this: http://en.wikipedia.org/wiki/Great_Oxygenation_Event for an idea. If the temperature decreased - this should help with your answer. -I'm not sure that you have fully addressed your question as you have not included "changes in the atmosphere, evolution or other autotrophs". Also what is on your y-aixs of the graph? Was it just fermentation rate? - what effect do you think the reduction in fermentation rate will have? :)

Sorry if I am being too critical - just saying what I think :)
Okay a few questions... firstly what year are you? (so sorry! I forget!) - Just helps me know if I am being too critical or not :P What is the word limit/expected amount for this piece of work? and lastly what is your referencing syle that you are supposed to be using?

Also, wiki isn't the greatest thing to use for referencing, the easiest way to get around this is use wiki's refereces - check which ones match the part you are referencing to make sure you refer to the right article.

Hope I've been a help :)

Answer 6

P.s. I hope I am not too late with my answer! I just realised those chat messages were from four hours ago!

Answer 7

1st. I am supposed to be in 9th grade, but I am taking all 10th and 11th grade classes.

Answer 8

Hey bonez. Just linking you to this: http://openstudy.com/groups/biology/updates/4e8468060b8bc11dd55507e1#/groups/biology/updates/4e84d2890b8bc11dd55804e7 because they posted the same question as you. I don't want to show them your answer (as you have written it out in full here) but maybe you are from the same class? :)