Succession and Extinction

Question 1

Did you read the Student Guide carefully?

Revolt · Accepted Answer

A: yes

Question 2

The independent variable, the one that you intentionally manipulate, is the .

Revolt · Accepted Answer

A: amount of compost

Question 3

What would be a reasonable estimate for the total number of pine trees in the larger plot of land (one square mile or forest)?

Revolt · Accepted Answer

B: 250 pine trees

Question 4

Which statements are part of the safety protocol for this lab experiment? Check allthat apply.

Revolt · Accepted Answer

A: Wear appropriate clothing for this activity (gloves, closed-toed shoes, etc.).; B: Do not eat or taste any of the seeds.; D: Review compost contents and follow any warning given on the packaging.; F: Wash hands thoroughly after handling all lab materials.

Question 5

Which of the following did you include in your question? Check any that apply.

Revolt · Accepted Answer

A: dependent variable: something related to succession that can be objectivelymeasured; B: independent variable: the amount of nutrients available; C: relationship: how nutrients affect growth of plant species

Question 6

Which of the following did you include in your hypothesis? Check any that apply.

Revolt · Accepted Answer

A: The “if” part of your hypothesis refers to adding nutrients.; B: The “then” part of your hypothesis refers to a measureable characteristic.; C: The “because” part of your hypothesis mentions that plant growth is dependent on nutrient availability.

Question 7

The dependent variables, the ones that you measure the response in, are the .

Revolt · Accepted Answer

A: number and average height of sprouts

Succession and Extinction Answers

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