Eukaryotic evolution and diversity

Question 1

Prokaryotes first appeared…

Answer 1

3.5 billion years ago

Question 2

Eukaryotic cells first appeared…

Answer 2

2 billion years ago

Question 3

What eukaryotic do to diversity

Answer 3

it increased it because cells could have specialized functions and have different size shape and mobility.

Question 4

Endosymbiosis

Answer 4

the process when one cell engulfs another cell to create a new cell.

Question 5

What 2 organelles present the most compelling argument for the theory of endosymbiosis

Answer 5

Chloroplast and mitochondria

Question 6

What evidence is there to support this theory

Answer 6

Membranes of mitochondria and chloroplasts are similar to living prokaryotes. Ribosomes are also similar to prokaryotic. These organelles also reproduce by binary fission. They contain circular DNA and have similar sequences.

Question 7

First multicellular organism existed…

Answer 7

1.2 -1.5 billion years ago… from colonies created dividing individual cells

Question 8

Large complex eukaryotes developed around…

Answer 8

550 million years ago