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kow [346]
3 years ago
11

We use heat and additional bacteria to make a cheesefrom yoghurt.

Biology
1 answer:
ololo11 [35]3 years ago
8 0

bacteria are rapidly killed at temperatures above 149°F (65°C). we need to use bacteria because We could not survive without all the bacteria living on and inside us. They act as part of our immune systems, digest foods such as dairy that we cannot break down ourselves and provide us with nutrients and minerals that we need to survive.

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In Drosophila, a very prolific phenotypically normal female was crossed to a phenotypically normal male. All of the female offsp
erastova [34]

Answer:

22 mu

Explanation:

Since maximum number of flies are observed with +pb and s++ phenotype, they are the parental combinations.

Minimum number of flies are observed with +p+ and s+b phenotype hence they are the result of double crossover.

Gene order would be +bp and s++ since it is the only case which would lead to production of above mentioned double crossover. Hence gene b is in the middle of genes s and p.

Single cross over between genes s and b will give progeny +++ and sbp.

Map distance between s and b loci = recombination frequency =

(number of recombinants/ total progeny)*100

= [(single cross over between s and b + double crossover)/total progeny]*100

= [(102+106+7+5/1000]*100

=(220/1000)*100

=0.22*100

=22 mu

3 0
4 years ago
7. What type of additives would be used to normalize tonicity? What's in a normal IV bag?
nydimaria [60]

A normal IV bag contains a saline solution. This means that it contains water mixed with sodium chloride though sometimes it may be water mixed with dextrose. Both of these are additives used to normalize tonicity.

Tonicity is a measurement of osmotic pressure. What this means is that it measures how likely it is for water to be drawn to it and is based on the concentration of solutes. There are 3 measurements for tonicity

  1. Hypertonic
  2. Hypotonic
  3. Isotonic

These measurements tell us whether water is likely to be drawn in, repelled, or not move at all. This will depend on the concentration of solutes and water on the inside and outside of a cell. If a patient is given normal water, the water will dissolve the solutes outside of a cell and cause a pressure gradient that will cause water to be drawn into a cell until it inevitably explodes. This death of the blood cells is known as hemolysis. To avoid this, additives like Dextrose or sodium chloride are added, to equalize tonicity.

Though dextrose is often used, the most common solution for an IV bag is the saline solution made from water and sodium chloride (salt). The addition of additives like salt or dextrose (a type of sugar) is important in order to normalize tonicity and avoid hemolysis.

To learn more visit:

brainly.com/question/6990155?referrer=searchResults

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3 years ago
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A 10-year-old boy has been brought to the emergency department (ed) by ambulance in apparent anaphylaxis after accidentally eati
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The emergency department nurse should be aware that the patient is having anaphylaxis due to a<span> massive release of histamine. </span>The emergency department nurse should be aware that an apparent anaphylaxis presents as difficulty breathing, decreased SpO2, decreased blood pressure, increased heart rate, and other signs and symptoms attributed to shock. The nurse should recognize that peanuts are one of the most common allergens in triggering anaphylactic reaction.
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4 years ago
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This is the outer part of the earth and contains the crust and upper mantel
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The answer will be Lithosphere
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What did Charles Darwin mean when he stated that some organisms were 'more fit' than other organisms?
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When Charles Darwin stated that some organisms were 'more fit' than other organisms, he meant that some organisms were more likely to reproduce. He meant that s<span>ome organisms are more likely to pass on more desirable and useful traits to offspring than other organisms. The correct answer is letter "B."</span>
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