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mr Goodwill [35]
3 years ago
14

How can you tell if a article is secondary source or primary source

Biology
2 answers:
Angelina_Jolie [31]3 years ago
4 0
Whether or not the article describes persenal experience is the major determining factor in this question. If the article tells the story of another, it is secondary, if the article was written by someone who is recounting on their experience, it is first peron. Hope this is clear and understandable.
sveta [45]3 years ago
4 0
If it is a primary source it will have thing that have happened soon with like there pictures,letters or even stuff from Diaries.
 
If it is a secondary source it will be stuff from like the past like stuff from published story's or text books<span>.
</span>
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Is it C? Be honest don’t agree cause I think it’s one thing
OLga [1]

answer:

c) if, then statement **you chose the correct answer**

explanation:

the hypothesis is an educated guess as to what will happen during your experiment. the hypothesis is often written using the words <u><em>if</em></u> and<em><u> then. </u></em>for example, "if i don't study, then i will fail the test." and since c) is the only answer choice that matches this description, c is the correct answer

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

5 0
3 years ago
HELP!! DNA was isolated from water samples taken from six different sites. This gel
VladimirAG [237]

After running DNA in a gel, bands of different sizes and species might appear. <em>Scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C). </em>

<h2>Gel</h2>

When DNA was isolated and run in a gel, many bands migrated to different points.

These bands were the different-sized fragments of DNA samples from different species from the six sites.

<em>Researchers wanted to figure out where the silver carp is. </em>

To do it, they needed to identify the bands on the gel that belonged  to the silver carp DNA, so they included negative and positive controls to make comparisons.

<h3>Positive and negative Controls</h3>

Negative and positive controls guarantee the interpretations of the results.

  • The positive control shows the band sizes that belong to the silver carp DNA.

<em>Any</em><em> band</em><em> in the sampling sites that</em><em> matches</em><em> one of the </em><em>positive control</em><em> bands indicates that the species is present at that site.</em>

  • The negative control is the opposite. It is the absence of the species' DNA.

<h3>Results interpretation</h3>

As we can see, there are four sites where the bands match one of the bands of the positive control. These are,

  1. North shore site 1
  2. Chicago site 1
  3. Calumet site 1
  4. Calumet site 2

This means that at these four sites, the silver carp is present.

<em>So scientists know silver carp are at North Shore site 1 because one of the</em><em> bands</em><em> in </em><em>lane 1</em><em> matches a band in the </em><em>positive control</em><em> (Option C). </em>

By looking at the lane of the North Shore site 1, we can also see another band (Thinner and grey). But this band does not match either of the positive control bands. This result suggests that the grey band belongs to another species' DNA.

You can learn more about gel electrophoresis at

brainly.com/question/9437877

brainly.com/question/895793

4 0
2 years ago
The colon is divided into two sections called the ascending transverse and descending transverse. True False
inn [45]

According to the research, the correct option is false. The colon can be divided into four sections: ascending, transverse, descending and sigmoid.

<h3>What is the colon?</h3>

It refers to the portion of the large intestine, whose function is to convert digested food waste (chyme).

It can be divided into four sections:

  • Ascending, it begins at the junction with the tenuous intestine and extends down the right side of the abdomen.

  • Transverse, which crosses the abdomen from the right side to the left.
  • Descending

  • Sigmoid.

Therefore, we can conclude that according to the research, the correct option is false. The colon can be divided into four sections: ascending, transverse, descending and sigmoid.

Learn more about The colon here: brainly.com/question/14788209

#SPJ1

6 0
1 year ago
Order the steps for starting a garden
natta225 [31]
Find the sunny spot, dig and loosen up the soil, mix the nutrients, plants the seeds , and finally water them well.
5 0
3 years ago
Read 2 more answers
What type of bug is this?
lara31 [8.8K]

Answer:It looks like a beetle

Explanation:

4 0
3 years ago
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