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Drag and drop the type of symbiosis to its correct example. Escherichia coli is a bacteria that lives in the large intestine feeding off of undigested material while producing vitamin K. We provide the bacteria with a nice, warm, place to live, while the bacteria makes vitamins that we require for blood clotting. Bacillus subtilis is a soil bacteria that produces antimicrobial compounds that reduce competition by killing other bacterial species. Staphylococcus epidermidis lives on human skin feeding on dead skin cells and we pay no particular attention to the harmless bacteria. There are over 500 different species of bacteria that inhabit the human gut and many of these species coexist without positive or negative effects. The human pathogen Neisseria gonorrhoeae infects human cells and results in disease. Neutralism Commensalism Parasitism Mutualism Amensalism 

          Drag and drop the type of symbiosis to its correct example.

Escherichia coli is a bacteria that lives in the large intestine feeding off of undigested material while producing vitamin K. We provide the bacteria with a nice, warm, place to live, while the bacteria makes vitamins that we require for blood clotting.

Bacillus subtilis is a soil bacteria that produces antimicrobial compounds that reduce competition by killing other bacterial species.

Staphylococcus epidermidis lives on human skin feeding on dead skin cells and we pay no particular attention to the harmless bacteria.

There are over 500 different species of bacteria that inhabit the human gut and many of these species coexist without positive or negative effects.

The human pathogen Neisseria gonorrhoeae infects human cells and results in disease.

Neutralism Commensalism Parasitism Mutualism Amensalism
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Drag and drop the type of symbiosis to its correct example. Escherichia coli is a bacteria that lives in the large intestine feeding off of undigested material while producing vitamin K. We provide the bacteria with a nice, warm, place to live, while the bacteria makes vitamins that we require for blood clotting. Bacillus subtilis is a soil bacteria that produces antimicrobial compounds that reduce competition by killing other bacterial species. Staphylococcus epidermidis lives on human skin feeding on dead skin cells and we pay no particular attention to the harmless bacteria. There are over 500 different species of bacteria that inhabit the human gut and many of these species coexist without positive or negative effects. The human pathogen Neisseria gonorrhoeae infects human cells and results in disease. Neutralism Commensalism Parasitism Mutualism Amensalism

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Biology for AP Courses
Biology for AP Courses
Julianne Zedalis, John Eggebrecht
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Escherichia coli is a bacterium that lives in the large intestine, feeding off of undigested material while producing vitamin K. We provide the bacterium with a nice warm place to live, while the bacterium makes vitamins that we require for blood clotting. Bacillus subtilis is a soil bacterium that produces antimicrobial compounds, reducing competition by killing other bacterial species. Staphylococcus epidermidis lives on human skin, feeding on dead skin cells, and we pay no particular attention to the harmless bacteria. There are over 500 different species of bacteria that inhabit the human gut, and many of these species coexist without positive or negative effects. The human pathogen Neisseria gonorrhoeae infects human cells and results in disease. Neutralism Commensalism Parasitism Mutualism Amensalism
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Transcript

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00:01 So we start with an initial colony of the size 250 e.
00:08 Coli bacteria, and we are told that they can double in 24 minutes.
00:16 So our doubling time is equal to 24 minutes, and that means that we can write y is equal to the initial population, or the initial amount, times 2 to the t over the doubling time divided by 24.
00:39 And now we want to write this as y zero times e to the kt.
00:48 So we need to find what k is.
00:50 Well, that means that we can set 2 to the 1 over 24 times t equal to e to the k times t, and that means that this here is equivalent to that because our t's then drop out.
01:10 So then the natural log of 2 to the 1 over 24 will be the natural log of e to the k, which is just k.
01:24 So then we can calculate k...
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