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nirvana33 [79]
3 years ago
5

what is the purpose of a control sample that is known to be from bighead carp in edna surveillance? a. to produce multiple bandi

ng patterns b. to amplify the dna in small samples c. to see if samples contain the target dna d. to identify each species of carp found
Physics
2 answers:
garri49 [273]3 years ago
8 0

Correct answer choice is :


C) To see if samples contain the target dna


Explanation:


In many North American rivers, populations of various kinds of non-native cyprinid fishes are present, including black carp, grass carp, bighead carp, silver carp, common carp, and goldfish. All six of these classes are found in the Mississippi River basin and following their aggression has shown complex, especially where wealth is low. The bighead carp is a species of freshwater fish, one of several Asian carps. It is one of the most intensively exploited fishes in aquaculture, with a yearly global product of over three million tonnes in 2013, mostly from China.

professor190 [17]3 years ago
4 0
I think the correct answer from the choices listed above is option C. The purpose of a control sample that is known to be from bighead carp in edna surveillance is to see if samples contain the target dna. A control sample is a set of sample that <span>does not receive treatment by the researchers.</span>
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The distance at which the man slips is 0.3 m

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Given-

mass of man= 70 kg

frictional coefficient μ=0.02

mass of body thrown= m2 = 3kg

let s be the stopping distance

we know that frictional force = F= μN

=μMg= 0.02 x 70 x 10

=14 N

∴acceleration, a= 14/70 = 0.2 m/s²

now on applying conservation of linear momentum

pi=pf            pi=0 (initially at rest)

0=m1v1-m2v2 (v1= velocity of man) (v2=velocity of body= 8m/s

v1= m2v2 /m1= 0.3 m/s

we know,

v²- u² = -2as

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2 years ago
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jeka57 [31]

Answer:

The answer should be C

Explanation:

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.

Please tell me if it is wrong

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Have a great day!

7 0
3 years ago
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Answer:

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rjkz [21]

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Explanation:

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density = \frac{mass}{volume} \\\\where:\\volume = 1 [m^3]\\density = 0.18[kg/m^3]

mass = 0.18*1

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If the wavelength of a 4.65 ✕ 102 Hz sound in freshwater is 3.45 m, what is the speed of sound in fresh water?
natima [27]

Answer:

Explanation:

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