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Andrej [43]
3 years ago
15

When is it more appropriate to use presumptive tests in a crime investigation?

Biology
1 answer:
Debora [2.8K]3 years ago
8 0
A presumptive Test presumes the pet presence of the question substance it is useful because it tells the drug is used false positive is possible meaning that the test result is positive but the substance is not present.
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How is the DNA in a prokaryote different from the DNA in a eukaryote?
nasty-shy [4]

Answer:

Explanation:

eukaryotes are compleax and have true nucleus e.g animal and plant

prokaryotes have fake nuclus its small and simpler.

therefors its B  

7 0
3 years ago
A pea plant is heterozygous for both seed shape and seed color. S is the allele for the dominant, spherical shape characteristic
kati45 [8]

So, you would make a punnet square. You would put the capital S and lowercase s on the top of it and then the capital Y and lowercase y on the side. Then you should have SY, sY, Sy, and sy as your outcomes.

4 0
3 years ago
Rib muscles and diaphragm contract, making the chest cavity ____________
torisob [31]
Larger
During the process of breathing, the diaphragm contract by moving downward and upward and this process usually increase or decrease the space in the chest cavity. However, intercostal muscles between the ribs also help to enlarge the chest cavity or reduce the space in the chest cavity.

3 0
3 years ago
Help! me, what is the foil method?
astraxan [27]
The foil method is a method to factor an expression. For example: FFWw. The question is simply trying to confuse you. Turn FFWw into (FF)(Ww) then solve as shown:

8 0
3 years ago
Which early hominid species was one of the first to control fire and migrate to new regions?
ivolga24 [154]

Answer:

The answer is Homo Erectus.

Explanation:

There is evidence that the first hominid species that controlled fire and migrated was homo erectus which was about 400.000 years ago but it is not accurately known and can range between 200.000 and 1.7 million years.

I hope this answer helps.

8 0
3 years ago
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