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Viktor [21]
2 years ago
12

Gerald has experienced increasing difficulties with muscle weakness, motor coordination, and body balance, which physicians have

attributed to multiple sclerosis. these symptoms are most likely to be directly linked with the degeneration of
Biology
1 answer:
yawa3891 [41]2 years ago
4 0
Answer is: the myelin sheath.
The myelin sheath is a extended and modified plasma membrane wrapped around the nerve axon in a spiral fashion. Myelin<span> is a fatty white substance that surrounds the </span>axon<span> of some </span>nerve cells<span>, forming an </span>electrically insulating <span>layer.
</span><span>Demyelination is the loss of the myelin sheath and result in many deseases.</span>

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Bill does 1500 J of work on a lever, which is a simple machine. The lever does 1350 J of work on a stone.
Oksanka [162]
Efficiency is the measure of how much work or energy is conserved in a process. In many processes, work or energy is lost, for example as waste heat or vibration. The efficiency is the energy output, divided by the energy input, and expressed as a percentage.
Efficiency is the energy output, divided by the energy input, and expressed as a percentage. 
Efficiency = (1350/1500)×100
                = 90%
3 0
2 years ago
Read 2 more answers
Black mice and tan mice are native species that are observed in a particular region. Human habitation in the region caused an in
4vir4ik [10]

Answer:

A

Explanation:

The correct answer would be that <u>the availability of food resources for black mice and brown mice will decrease.</u>

<em>Since the food requirements of the black mice are the same as that of the invasive brown mice, the available food supply that used to be only for the black mice would now be shared by the two strains of mice. Hence, the available food for the two groups of mice will naturally decrease.</em>

There is no sufficient information to conclude that the population of tan mice will decrease, hence, option B is incorrect.

The black mice and tan mice have different food requirements going by the information available in the illustration, hence, both cannot compete for food resources. Option C is, therefore, incorrect. In the same vein, option D is incorrect because the tan mice have different food requirements from the brown mice.

<u>The only correct option is A.</u>

3 0
2 years ago
Lana is studying the deer that live in a forest. She concludes that all of the deer are members of the same
yKpoI14uk [10]

Lana concludes that all of the deer in a forest are members of the same (geosphere / ecosystem / species / hydrosphere) because they look alike and breed with one another. She observes how the deer (population / community / ecosystem / biosphere) interacts with trees, wolves, and other living things of the forest (population / community / species / geosphere).

Answer:

1.  Species

2.  population

3.  community

Explanation:

Given the available options. Here is the correct or full text that matches with the correct meanings.

Lana is studying the deer that lives in a forest. She concludes that all of the deer are members of the same SPECIES because they look alike and breed with one another. Next, she observes how the deer POPULATION interacts with trees, wolves, and other living things of the forest COMMUNITY

7 0
2 years ago
Maggie's Plant Experiment In this exercise you will read the following scenario and identify the parts of the scientific method
ANTONII [103]

Answer:

Please find the identified steps of the scientific method below

Explanation:

A scientific method is a series of steps that aims at solving a problem. The steps in a scientific method include:

1. Making observation: In this experiment, Maggie observed when she read that some plants grow better if the soil is acidic. This is her observation that led to the scientific question: Do plants grow better in an acidic soil?

2. Formulating hypothesis: Hypothesis is a testable explanation to a problem. In this experiment, Maggie's hypothesis is; IF acid is added to the soil, THEN plants will grow better

3. Test hypothesis: the hypothesis is tested by conducting an experiment. In this case, Maggie places two geranium plants of the same size in two pots. Then she added a tablespoon of vinegar to one of the pots and allows the other grow normally without acid. The independent variable in this experiment is the vinegar added while the dependent variable is the height of the plants. The plant group with the vinegar is the experimental group while the plant group without vinegar is the control group. The constants of this experiment are same sunlight, same amount of water, same location etc.

4. Analyse data: The growth of the control and experimental plants were measured every week for five weeks by measuring their heights. The height (cm) of the plants with vinegar for the five weeks as as follows: 10.0, 12.4, 14.8, 18.0, 21.4 while the height in cm for the plants without vinegar for the five weeks is as follows: 10.0, 11.5, 13.0, 15.7, 17.8.

5. Conclusion: Based on the result, the plants exposed to vinegar grew better each week except week 1, which is the week they started. Hence, the hypothesis of this experiment will be ACCEPTED because the experiment proves it.

7 0
2 years ago
How does compartmentalization organize a cell's functions?
irakobra [83]
The answer is i<span>t allows for specialized functions in each of the compartments.

Hope this helps!

-Payshence xoxo</span>
5 0
2 years ago
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