Preskoči na glavni sadržaj

Sign up for FREE

10/5 Natural Disruptions

Posljednje ažuriranje about 1 year ago

6

Napomena autora:

You will use this paper and the interactive at https://media.hhmi.org/biointeractive/click/extinctions/

Instrukcije

You will use this paper and the interactive at https://media.hhmi.org/biointeractive/click/extinctions/

1

1

1

1

1

1

Pitanje 1

1.

What are the names of the mass extinctions on the horizontal axis of the interactive? How long did each period that preceded the extinction last in years?

Pitanje 2

2.

What is on the vertical axis? (include the unit)

Pitanje 3

3.

What appears to be one criterion that scientists use when defining the timing of geologic periods?

Pitanje 4

4.

Is the line on the interactive graph ever flat? Does it ever reach zero? Explain.

Pitanje 5

5.

Click the info icon for each of the extinction events. Record the environmental factors and the affected species.

Pitanje 6

6.

What would you want to know to help determine if we are in the beginning of a 6th mass extinction?