Mastery lesson re re 8.11A

RE MASTERY 8.11A

Know the competition between organisms

Multiple Choice

Answer the following question

• A

• B

• C

• D

Multiple Choice

A farmer digs a small pond in a pasture. The farmer adds young individuals from two species of algae-eating fish to the pond and plants some reeds around the edges of the pond. The farmer wants the pond to be a sustainable ecosystem. Which of the following would be most helpful in increasing the pond ecosystem’s sustainability?

• Decreasing the number of plant species around the edges of the pond

• 
  Having a greater diversity of living organisms in the pond

• Adding gravel between the water and where the reeds are planted

• Introducing older fish of the same species into the population of algae-eating fish

Multiple Choice

Which statement best explains a difference between Plant 1 and Plant 2?

• Plant 1 obtains more water from the soil because of its root surface area and root depth.

• Plant 2 obtains more water from the soil because of its root surface area and root depth.

• Plant 1 obtains more sunlight because of its root surface area and root depth.

• Plant 2 obtains more sunlight because of its root surface area and root depth.

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8.11A

• QUIZ 1

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• QUIZ 2

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