Lab 3 biodiversity

image1.jpg

Lab 3 – Biodiversity

Demonstration 1: Interdependence of Species

Table 1: Interdependence of Species Results

Round

Species Missing (Bead Color and Name)

1

2

3

4

POST LAB QUESTIONS

1. Explain how the ecosystem was affected by the missing species for each round of the demonstration.

a. Round 1 =

b. Round 2 =

c. Round 3 =

d. Round 4 =

2. Provide one action we as humans engage in that leads to the extinction of each of these components.

Action affecting Lichens =

Action affecting Trees =

Action affecting Flowers =

Action affecting Bees =

3. Provide three specific actions that humans can take to minimize our impact on the ecosystem and ensure the survival of lichens, trees, flowers, and bees.

Action 1 =

Action 2 =

Action 3 =

Experiment 1: Diversity of Plants

Table 2: Number of Each Plant Species Present in Pot 1 and Pot 2

Species Observed

Number in Pot 1(sunlight)

Number in Pot 2(shade)

Zinnia

Marigold

Morning Glory

Cosmos

Ryegrass

Total Number of Species in Pot:

POST LAB QUESTIONS

1. Develop a hypothesis on which pot you believe will contain the highest biodiversity.

Hypothesis =

2. Based on the results of your experiment, would you reject or accept the hypothesis that you produced in question 1? Explain how you determined this.

Accept/Reject =

3. If each pot was a sample you found in a group of wildflowers, would you determine based on the diversity of flowers that the ecosystem is healthy? Why or why not.

Answer =

4. How does biodiversity contribute to the overall health of an ecosystem? Provide specific examples and utilize at least one scholarly resource to back your answer.

Answer =

References

Any sources utilized should be listed here.

© eScience Labs, 2013