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dimulka [17.4K]
3 years ago
5

How would you determine whether a colony was a contaminant on a streak plate?

Biology
1 answer:
Phoenix [80]3 years ago
7 0
<span>A contaminant would be one growing in an area where you did not streak!</span>
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Is the EARTH flat or round? really deep question don't make fun of it cuz there are too many contradiction
suter [353]

Answer:

Round

Explanation:

The Earth is round ,even though there are many contradictions. The Earth spins on an axis, which is why there are different time zones all around the world. If the world was flat, then an Earth's core wouldn't exist and also the laws of gravity would not make since due to the Earth being considered flat. People would never know if they met the end of the Earth, or if they walked off the face of the Earth. Also note that if the Earth was flat then our Solar System would have to be flat since it involves the planets to revolve around the Sun.

6 0
3 years ago
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What do scientists often use to study microevolution?
patriot [66]
<span>They often use the fossil recordnova net. I hope this helps.</span>
3 0
3 years ago
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Why does a hormone only act on specific cell types in an organism and not others?
Vilka [71]

Answer:

c) A cell must have the appropriate receptor before it can bind to the hormone.

Explanation:

Hormones are chemical signals that are secreted into the circulatory system acting as regulators within the body, and even though they can reach any part on the body, <em>only certain types of cells are equipped to respond, these cells are known as target cells, when the hormone reaches a cell with an adequate receptors it triggers a signal transduction and then a response.</em>

Therefore the correct answer is c.

I hope you find this information useful and interesting! Good luck!

5 0
3 years ago
Why are scientists and governments working to save shark populations? What are some solutions they are testing? What else do you
Bingel [31]

There will be sharp increase in the natality rate in sharks which alert the government so they will be not come under endangered species.

<h3>What is endangered species?</h3>

A species considered to be facing a very high risk of extinction in the wild is called endangered species.

There are some solution has been tested by the scientist so that they can find that what makes increase in natality rate, incase if there is toxic chemical or anything in water. Ban of shark fishier will also help in shark conservation.

Learn more about endangered species here:

brainly.com/question/10415903

#SPJ2

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2 years ago
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Please help ASAP please
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