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ollegr [7]
3 years ago
8

Please help!

Biology
1 answer:
Dafna1 [17]3 years ago
6 0

Answer:

C. could not provide a mechanism for moving continents

Explanation:

Without the discovery of magnetic reversals recorded on the ocean floor, scientists  could not provide a mechanism for moving continents.

Magnetic reversals are responsible for geological shifts and depend on the distribution of tectonic plates that causes movements of continents.

Asymmetric movement of tectonic plates leads to movement of continents  and the degree of asymmetry varies with the same rythm of the magnetic reversal rate.

Hence, discovery of magnetic reversals are important to identify the mechanism for moving continents.

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Which of the following is true of vacuoles?
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These are all true- Vacuoles might store food or any variety of nutrients a cell might need to survive but they can even store waste products so the rest of the cell is protected from contamination. They’re also larger in plants than in animals
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Suppose that several organisms from a strain of bacteria inherited a mutation that increased their resistance to antibacterial d
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Natural selection

Explanation:

Natural selection is a process where some organisms are able to reproduce more and survive better due to the presence of beneficial genetic traits in them. The other organisms of the same population that lack these traits are not able to survive and reproduce in the same way. The bacterial having drug resistance are able to survive in the presence of drugs in the surroundings. These bacteria will reproduce more and leave more progeny. Over the generations, the proportion of the bacteria with drug resistance will increase. This represents an example of natural selection.

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dna samples from four different organisms were analyzed using a procedure that separates the dna in each sample by size.What pro
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Answer:

The correct answer is - Gel electrophoresis.

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What are 5 things that can be done to prevent food from becoming contaminated?
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Here are five suggestions for preventing food contamination so that you and your family can reduce your chance of getting sick.

1) Wash your hands first.

2) Constantly look for Use-By dates.

3. Clean Cutting Boards and Work Areas

4) Take Good Care of Your Fridge.

5) Ensure that your food is well cooked.

<h3>What are ways to prevent food contamination?</h3>
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  • Foods that are ready to eat should be kept on the upper shelves of the refrigerator.
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<h3>How may pathogens be prevented from entering food?</h3>
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  • Wash your hands with soap and hot water both before and after handling food, using the restroom, changing diapers, or petting animals.
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<h3>In what ways is food contamination avoided?</h3>

Frequent hand- and surface-washing. Cutting boards, cutlery, and counter tops in the kitchen can all become contaminated with dangerous bacteria. Wash your hands with soap and hot water before and after handling food, going to the bathroom, changing diapers, or touching pets in order to avoid this.

learn more about prevention of food contamination here

brainly.com/question/10319745

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8 0
1 year ago
What is the outcome when a cell undergoes meiosis?
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