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emmasim [6.3K]
3 years ago
10

Jamal is asked to write a science essay about molecular forces. He first turns to his science textbook for information. Which is

the BEST second source for Jamal’s research? A) a magazine B) a newspaper C) a scientific journal D) a science-fiction novel
Biology
1 answer:
bazaltina [42]3 years ago
8 0
The appropriate answer is c. a scientific journal. A scientific journal is a collection of papers based on topics in science that have been written by experts in their fields. Individuals with a masters or doctorate in various subject areas are published here.

From the list given this is the best second source for the research. Science fiction novels and not real and so would be unacceptable. Magazines and news papers reporting on scientific research most likely get information from scientific journals.
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describe a situation in nature where genetic drift might be a more important influence on evolution than natural selection.
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Answer:

Example of genetic drift

Explanation:

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Unconformities occur when:
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emmainna [20.7K]

A) WHAT IS THE PROBLEM WITH HER PLAN?

Binary fission is one of the asexual process by which most bacteria reproduce, the binary fission brings about a doubling of the number in bacterial cells that are viable.

Generation time is that time that it will require for a cell population to divide and double, it is also known as doubling time. This Generation time varies among distinct organisms and also varies among culture conditions.

Take for instance,a fast growing bacterium that is under an ideal culture conditions has a doubling time of 20minutes and for the bacteria that is grown in a condition that is not so ideal,may have a doubling time of hours.

The major challenge/ problem with her plan is that as she takes the bacterial sample every 30minutes, and then hold the sample till the last sampling is done in the day,those bacterial cells that are collected in the initial intervals will then get divided and further gives a result that is false.

However,if those bacteria that are collected aren't stored in a culture environment that is standard,the bacterial cells may die off and thus will further bring about a false result.

2) CAN SHE DO ANYTHING TO IMPROVE THE ACCURACY OF HER RESULT?

Solution for rectifying the error in her plan;

She can go ahead and add 50-100 μl of formaldehyde to all the culture suspensions that she has and has taken every 30minutes.

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<span>So that the cells can function correctly. </span>
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azamat

Answer:

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Explanation:

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