Lab: Disease Spread

Question 1

: Two species benefit from interaction with each otherExample: A hummingbird gets food from the nectar of a flower and then spreads the nectar’s pollen, helping the flower reproduce.

Revolt · Accepted Answer

C: Mutualism

Question 2

: One species benefits from the interaction, and the other species is harmed but not necessarily killedExample: Ticks feed on other animals’ blood, which can hurt the other animals.

Revolt · Accepted Answer

E: Parasitism

Question 3

Check all correct elements below that you included in your question.

Revolt · Accepted Answer

A: independent variable: presence of one species (here, worms); B: dependent variable: effect on another species (here, lima bean plants); C: relationship: benefit

Question 4

: One species benefits from the interaction, and the other species is neither helped nor harmedExample: Egrets rely on cows to stir up dirt and bring food to the surface, but cows do not benefit.

Revolt · Accepted Answer

D: Commensalism

Lab: Disease Spread Answers

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