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rjkz [21]
3 years ago
12

You are working on a forensics team and collect cells from a crime scene. The cells have a cell wall made of cellulose. This sam

ple most likely came from
Biology
1 answer:
katen-ka-za [31]3 years ago
7 0

The plant cells have the cell wall made up of cellulose. In case, a cell represents the presence of cell wall then it is most likely to belong to plant cells.

Other than plant cell fungi as well as some protozoa also possess the cell wall, but the cell wall made up of cellulose is exclusively present in the plant cells.

So, the cell sample collected in this case is most likely came from a plant.

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taurus [48]

Answer:

I think it's A) A protein substrate

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2 years ago
A study was conducted in men aged 40-70 in order to determine whether exercising for 2 or more hours per week decreases the like
Blizzard [7]

Answer: alternative A.

Explanation: In this case, we will consider people that already have had a heart attack. In this specific group of 1,000 people, 236 exercised regularly and had gone through this situation.

We can infer that 23.6% of people who exercised regularly have experienced that by dividing 236/1,000= 0.236= 23.6%.

If 236 people exercised, 1,000-236=764 didn't exercise regularly prior to their heart attacks, so 74.6% were considered to be sedentary.

If there's 0.236 chance out of 1 to exercise and still have a heart attack compared to 0.764 out of 1 to be sedentary and have the same experience, we can divide both ratios to compare them, so 0.236/0.764= 0.3089.

Alternative A claims that people who exercise have around 0.5 chance of having heart attacks compared to people who don't. Since our ratio resulted in 0.3089, we consider this number the closest to 0.5. Alternative <u>B is absurd because in order for people who exercise to have 2x the risk compared to people who don't, the number of people who exercised and went through that must be 2x bigger than people who didn't</u>. Alternative <u>C doesn't apply as well, because we already verified that the chance people who exercise have a heart attack equal to 23,6%. </u>

<u />

5 0
3 years ago
From left to right, which is the sequence of the<br> complementary strand of DNA in this molecule?
ladessa [460]

Answer: Option A) A-C-T-T-G

Explanation:

The base sequence on a strand of DNA is usually paired to specific complimentary bases. These specific pairings are as follows:

Adenine (A) pairs with Thymine (T)

Guanine (G) pairs with Cytosine (C). So when you find A replace with T, so also replace C with G and vice versa.

Thus, the complimentary sequence of the T-G-A-A-C DNA strand is A-C-T-T-G

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Que es eso díganoslo
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There are stretch receptors in the aorta and carotid arteries, and they are stimulated when blood pressure falls. If blood press
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