Question 2 Match the following events with their chronological time: Earth forme

Question

Question 2 Match the following events with their chronological time: Earth formed [Choose ] 3.5 billion years ago 2.2 billion years ago 1.5 billion years ago 4.5 billion years ago First life forms appeared Photosynthetic cyanobacteria [ Choose ] Eukaryotes appeared Choose] D Question 3 New body forms can result from which of the following gene changes? Select all that apply O Changing the timing in which a body part starts to develop Changing the location where a body part grows from O Changing the information by altering the gene sequence O Changing how the expression of the gene is regulated Changing the rules of inheritance

Explanation / Answer

2. Matching -

Earth formed - 4.5 billion years ago.

First life forms appeared - 3.5 billion years ago.

Photosynthetic cyanobacteria - 2.2 billion years ago.

Eukaryotes appeared - 1.5 billion years ago.

3. Changing the information by altering the gene sequence can results the formation of new body.

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