What are the relative ages of volcanoes in a chain with a hotspot at one end? Explain

2 answers:

5 0

The volcanic field is made of flood basalts that cover an area of 9,650 square miles (25,000 square km). The flows extend about 60 miles (100 km) north and south away from the arch. The youngest lava range in age from 750,000 to 900,000 years old. The oldest flows are about 2.7 million years old

seraphim [82]2 years ago

4 0

Answer:

Mantle plumes that form hotspots are thought to be relatively stationary whereas the overlying tectonic plates typically are not. Thus, as a plate moves over the location of a plume eruption, it carries successively older volcanoes with it.

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The most complex organic compounds are the_____.

Mars2501 [29]

Answer:

i-propyl cyanide

Explanation:

But i-propyl cyanide is the largest and most complex organic molecule found to date - and the only one to share the branched atomic backbone of amino acids. "The idea is to know whether the elements that are necessary for life to occur… can be found in other places in our galaxy."

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3 years ago

Match the types of societies to their characteristics. dependent on wild plants and animals for their sustenance dependent on ag

Simora [160]

Answer:agrarian society- dependent on agriculture

Modern society-dependent on manufacturing sector for income

Hunter-gather society-dependent on wild plants and animals for their sustenance

Explanation:

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For question 13.1-13.4, if you sorted 200 flies by eye color and body color, how many whole flies out of that 200 would you expe

Tcecarenko [31]

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3 years ago

You perform a study in which humans can choose to eat proteins, lipids/carbohydrates, and/or vitamins/minerals. Due to your adva

Advocard [28]

Answer:

It depends...

Explanation:

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Which step in the PCR process will be affected?

Temka [501]

The denaturation step in the polymerase chain reaction will be affected. As a result the DNA strands will not unwind and the DNA will not become single stranded.

Explanation:

Polymerase chain reaction is used to synthesize multiple copies of DNA. The technique in molecular biology uses thermal cycling which involves steps of heating and cooling. There are three important steps in PCR.

Nucleic acid denaturation is the first step. In this step the DNA is heated to about 90°c and this causes the denaturation of the DNA. Two strands of DNA get separated. The second step is annealing in which the strands are cooled to 55°c.

During annealing the primers stick to the complementary sites on the DNA to facilitate its replication. The third step is extension in which the temperature of the mixture is raised to 72°c. The tag polymerase will start working on the DNA strands and replicate them.

If the denaturation step is not performed the speration of double stranded DNA into single strands won’t take place.

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3 years ago