Algae Interaction:  Below are several questions that were created from the information provided to you in the algae interaction lab, and what you were exposed to during physical lab time

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Algae Interaction: 

Below are several questions that were created from the information provided to you in the algae interaction lab, and what you were exposed to during physical lab time. There are no correct answers. Critical thinking is what I'm looking for, as well as well structured sentences with appropriate citations when necessary. For questions 1-2, refer to the definitions of the species on page 91 of your lab book. 

 

(1) Pretend that Euglena is put into the same container as Pandorina. In this container, there is no light available. What do you suspect will happen to both species?

 

(2) Imagine that Closterium is put into the same container as Pandorina. Given that they are both autotrophs, do you expect exploitation competition, interference competition, or both to occur? Why?

 

(3) Why was density used as a tool for measuring algae growth? What factors could impact the density that you measure?

 

(4) Provide one example where species are partitioning a given resource. Give another example where one species causes the exclusion of another species. What resource was it? What behaviors, physical traits, etc. allowed this to happen?

 

(5) what is a niche?

 

(6) Draw out a theoretical density vs. time ( y vs x) graph, either by hand or through a computer program of all 3 species included in your lab book: Euglena, Closterium, Pandorina. Include appropriate titles. Remember: this is theoretical. There will be a total of 3 varying lines/curves across the graph, but they don't have to correspond with specific numbers. Think of it more like a trend for each species based on what you think is happening. Also please provide a brief description at the bottom of the graph explaining your thinking behind this and why you drew the graph the way that you did.