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adell [148]
3 years ago
12

The photographs left were taken using a transmission electron microscope They show the ultrastructure of some organelles.

Biology
1 answer:
Nezavi [6.7K]3 years ago
3 0

Answer:

True

Explanation:

The transmission electron microscope, is a potential microscope that can make bigger the objects 1 million times. The main use is to analyze metals and other materials, to observe the arrangements of the particles in it. Also some other structures as the viruses can be observed with this microscope.

When the optic microscope can not see some structures like the organelles, then it is used this kind of microscope.

It is used also to observe some organelles, membranes, and other structures.

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If a particular strand of DNA is found to be 27% adenine, how much guanine would it contain
Naddika [18.5K]

Answer:

You have 20% of adenine. If you have 20% of adenine than you have 20% of thymine, because the amount of adenine and thymine is equal. 20% plus 20% is 40% of adennine and thymine. From 100% DNA bases subtract 40% and you will get 60%. Then divide this by 2 and you will get 30%. 30% of guanine and 30% of cytosine, because their amounts are equal in the DNA stand.

Explanation:

6 0
2 years ago
When Native Americans first encountered Europeans, what led to the European diseases being so deadly?
Anarel [89]

Answer:

The War I think

Explanation:

What led to the European disease was the cause of the war that made many Americans come and then it called the disease

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3 years ago
Ice floats because...
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5 0
3 years ago
Which sequence shows the correct order of living things in a food chain?
kkurt [141]

The correct answer is option (A) leaves > deer > wolf.

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In the food chain given above, leaves > deer > wolf, deers feed on the leaves which are maximum in number comparitively, wolf feeds on the deer which are comparitively more in number than the wolves. This is the correct sequence of food chain showing the tranfer of energy and decreasing number of organisms with subsequent increase in the trophic levels.

8 0
3 years ago
Explain how mRNA is formed from the DNA template.
muminat

Answer:

mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.

4 0
3 years ago
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