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Otrada [13]
3 years ago
10

Give examples of how scientist use repeated trials and replication in conducting experiments.

Biology
2 answers:
BartSMP [9]3 years ago
5 0
When testing a hypothesis, scientists use repeated trials and replication to make sure that they get the same answer each time, and that it isn't just a lucky guess the first time.  


Anastasy [175]3 years ago
3 0
When testing a hypothesis, scientists use repeated trials and replication to make sure that they get the same answer each time, and that it isn't just a lucky guess the first time.  They need be sure that the answer to their hypothesis is 100% the same every time.
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what is difference between the name of an object versus the chemical formula?please answer my question I'm trying that from thre
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Answer:

Assuming you mean in a compound of elements: A name is just what you call it, and the chemical formula is what elements it is made of.

Explanation:

Take sodium chloride (Salt) for example. It's name is sodium chloride, but its chemical formula is NaCl. Na= Sodium, and Cl = Chlorine. So one sodium ion and one Chlorine ion create NaCl. Na+Cl=NaCl. And the name for the product of the formula is Sodium Chloride.

Another example is H2O (Water). H=Hydrogen and O=Oxygen. There are 2 hydrogens and one oxygen in H2O. H+H+O=H2O. The name for the formula is water.

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Why does the crab and the centipede share the same phylum ?
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Answer:

An arthropod is an invertebrate animal having an exoskeleton like a crab and a centipede.

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Wind and water energy are both indirect forms of what other type of energy source
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<span> nuclear: Classify the </span>different energy sources <span>from the table according to whether they are renewable.</span>
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The substance used to separate the proteins from the dna
Genrish500 [490]

DNA is deoxyribonucleic acid, which is insoluble in ethanol. In the process of centrifugation the addition of ethanol can aid to separate protein from its DNA.

<h3>What is centrifugation?</h3>

Centrifugation is a process of separating different molecules in a given sample that have different densities by rotating them in solution around an axis at high speed.

It is the frequently applied techniques in the molecular biology laboratory.

The addition of alcohol or ethanol to the sample followed by centrifugation can separate the proteins from its DNA.

Thus, the substance used to separate the proteins from the DNA is alcohol or ethanol.

For more details regarding centrifugation, visit:

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2 years ago
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D.  A variable or alteration to one part that affects an entire system

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When talking about natural and physical systems, change is a variable or alteration to one part that affects an entire system.

Systems are groups of processes that have the same overall function. There are several types of interacting components that makes up both physical and natural systems in our world.

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