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Alexus [3.1K]
3 years ago
10

Which of the following terms refers to bloodstains that are not visible to the naked eye?

Biology
2 answers:
dsp733 years ago
6 0

Hello. This question is incomplete. The full question is:

" Which of the following terms refers to bloodstains that are not visible to the naked eye?  A.  molded bloodstains  B.  hemoglobin  C.  latent bloodstains  D.  blood spatter"

Answer:

C.  latent bloodstains

Explanation:

Latent blood stains are not visible to the naked eye. For this reason, within the forensic science there are methods and equipment that can be used so that this type of blood stain can be visualized. The well-known luminol is one such method. Luminol causes a chemiluminescent reaction in contact with the blood stain and exposed to ultraviolet light. This reaction occurs due to the affinity between the iron molecules present in hemoglobin and luminol. Blood stains are photographed and samples are collected and sent to the laboratory.

ANTONII [103]3 years ago
3 0
The answer to your question 6loodstain Pattern Analysis
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The students concluded that pea plants grew better in compost than did melon plants. Which of the following best addresses the v
musickatia [10]

Answer:

c. The conclusion is invalid because other variables in the experiment affected the results.

Explanation:

Consider the complete problem:

A group of students designed an experiment to determine the effect of compost on the germination and growth of plants.

The students set up experimental plots by mixing different ratios of soil and compost. They planted 20 pea and 20 melon

seeds in each plot and watered each plot regularly. The students recorded the number of seeds that germinated, and as the

plants grew they recorded the plant length, number and size of leaves, and general health observations.

The following observations were recorded.

 In all treatments, more pea seeds germinated than melon seeds

 There was a week of rainy weather at 3 weeks

 Melon plants developed a fungal growth at four weeks

 Melon plants grew longer than pea plants, but many melon leaves showed signs of yellowing as the weeks passed

The students concluded that pea plants grew better in compost than did melon plants. Which of the following best

addresses the validity of the conclusion made by the students?

a. The conclusion is valid because the independent and dependent variables in the experiment were controlled.

b. The conclusion is valid because the experimental design included a large sample size.

c. The conclusion is invalid because other variables in the experiment affected the results.

d. The conclusion is invalid because the units of measurement were not given in the experimental design.

<em>In order for the conclusion to be valid, all the independent variables should have been controlled. In this case, the independent variables such as the amount of water received by the plants, nutrient requirement of the plants, etc. were not controlled leading to fungal attack on the melon plant.</em>

<em>Hence, the conclusion is invalid because other variables that ought to have been controlled affected the experimental outcome.</em>

<em>The correct option is c.</em>

4 0
3 years ago
F a 25-year-old woman visits a community health care center to obtain a gynecological examination and birth control pills, these
andrew11 [14]
Hello There!

A 25 year old woman visits a community health care center to obtain a gynecological examination and birth control pills, these activities are termed Primary Health care.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
3 0
3 years ago
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Why does vibrations create sound?
julsineya [31]

Answer:

Sound is a type of energy made by vibrations. When any object vibrates, it causes movement in the air particles. These particles bump into the particles close to them, which makes them vibrate too, causing them to bump into more air particles. This movement, called sound waves, keeps going until they run out of energy.

6 0
2 years ago
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If the dna content of a diploid cell in the g1 phase of the cell cycle is represented by x, then the dna content of the same cel
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What do all cells have in common
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<span> The parts include a plasma membrane, cytoplasm, ribosomes, and dna.so your welcome</span>
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