Question

Question 1

Put the following events of early Earth in order, justifying at least TWO of your ordering decisions with specific examples of tests/research (20 pts)

• Large organic molecules form
• First eukaryotes
• First multicellular life
• First photosynthetic life
• First prokaryotes
• Small organic molecules form

1.

2.

3.

4.

5.

6.

First Justification: (Ex:“I put #2 before #3 because…”)

Second Justification:

Answer 1

Answer- #1 small organic molecules

#2 larger organic molecules

#3 first prokaryotes

#4 first eukaryotes

#5 first multicellular life

#6 first photosynthetic life

I put #1 before #2 because larger organic molecules or organic macromolecules are developed from the polymerization of smaller organic molecules. For example- polymerization of individual amino acids results in formation of peptide( larger molecule )

I put #3 before #4 as earlier organisms were present without membrane bound organelles ,eg archeabacteria. As they evolution occurs, these organelles get membrane bound.