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RideAnS [48]
3 years ago
15

Which of the following is an experimental study?

Biology
1 answer:
larisa [96]3 years ago
3 0

Answer:

What are all of the experiments

Explanation:

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What level of organization is represented by the brain
Bogdan [553]

Cell,tissues ,Organs and Organ Systems. After tissues, organs are the next level of organization of the human body. An organ is a structure that consists of two or more types of tissues that work together to do the same job. Examples of human organs include the brain, heart, lungs, skin, and kidneys

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Body systems in the human body work together to support the essential life functions of the body. The urinary system interacts w
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Answer:

a

Explanation:

the kidney secretes an enzyme called rennin that helps to control blood pressure is not true the kidney does not secret rennin

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How does churning in the stomach affect digestion
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3 years ago
How could you use a microscope to help determine whether a specimen is a living or nonliving thing
lara [203]
<span><em>Whether living or non living:</em>
<em>When you put a sample of tissue under a microscope, if u can see a cell membrane, and can identify some cell structures like nucleus, mitochondria, vacuoles etc. , it was living, if not, its a non living thing.</em></span>

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<span><em>To check if your specimen maybe-once living, maybe-still living "something", is living, get a look at it through an electron microscope - thats the best microscope ever- and see if the mitochondria's making any ATP( adenosine triphosphate, source of energy for most organisms), if it does, its living. If not, no</em></span><em>n living. :)</em>
7 0
3 years ago
Why did the invention of pcr make dna fingerprinting possible
Svetlanka [38]
Answer:

With the invention of the PCR technique , DNA profiling took huge strides forward in both discriminating power and the ability to recover information from very small or degraded starting samples.

The process of PCR mimics the biological process of DNA replication but confines it to specific DNA sequences of interest.

In PCR process , the DNA sample is denatured into separate individual polynucleotide strands through heating. Two oligonucleotide DNA primers are used to hybridise to two corresponding nearby sites on opposite DNA strands. Thus two new copies of the sequences of interest are generated.

Repeated denaturation , hybridisation and extension in this fashion produce an exponentially growing number of copies of the DNA of interest.

Quantitative PCR methods enable automated , precise and high - throughput measurements.

6 0
3 years ago
Read 2 more answers
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