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Illusion [34]
3 years ago
15

A major change that occurred in the evolution of eukaryotic cells from prokaryotic cells was the development of?

Biology
1 answer:
slamgirl [31]3 years ago
7 0
A membrane bound nucleus (or just a nucleus in general)
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To test the quality of water sources in her area, Shameka collects five samples from each water source and tests the quality of
Neporo4naja [7]

Of the steps included in the scientific method, Shameka is performing step five, which is to<u> test your hypothesis by performing an experiment</u>.

The scientific method is the globally accepted process by which to make scientific claims. This method includes seven steps which are:

  1. Ask a question
  2. Do research
  3. Create a hypothesis
  4. Design an experiment to test the hypothesis
  5. Perform the experiment
  6. Study the results and make a conclusion
  7. Communicate the results to your peers.

The question states that Shameka is <u>gathering samples from nearby water sources</u>, therefore she is in the process of testing her hypothesis through experimentation, which corresponds to step 5 of the scientific design.

To learn more visit:

brainly.com/question/1452319?referrer=searchResults

5 0
3 years ago
Which statement about technology is true? Technology improves a scientist’s ability to make observations. Technology does not ha
Alexandra [31]
The third statement is correct
3 0
3 years ago
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Holly is a healthy woman who is 22 years of age. using this information, calculate her target heart rate zone for moderate-inten
guajiro [1.7K]

Answer:

99 to 138.6 bpm

Explanation:

The heart rate of an individual is a measure of how many times the heart beats in a given time, usually measured in beats per minute (bpm).

Resting heart rate is the number of beats per minute when an individual at rest. Generally, it can be understood that the lower the resting heart rate, the more physically fit an individual is.

The maximum heart rate for an individual is 220 minus their age. The target heart rate for moderate physical activity is 50-70% of the maximum heart rate and for vigorous physical activity it is 70-85% of the maximum heart rate.

Based on Holly's age, her maximum heart rate is 220 - 22 = 198 bpm

Her heart rate zone for moderate physical activity is 50-70% of 198 bpm: 99 to 138.6 bpm

Her heart rate zone for vigorous physical activity is 70-85% of 198 bpm: 138.6 to 168.3 bpm

7 0
3 years ago
If a cat meows in the woods, does a dog cringe?!
Likurg_2 [28]

Answer:

ofc

Explanation:

7 0
3 years ago
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Write a 5 sentence paragraph describing a human organ system. Include a main idea, supporting details, and a concluding statemen
xxTIMURxx [149]


     There are several organ systems in the body. One of them would be the respiratory system. There are many more including the heart, digestive, and the skeletal.


Can u please add a little more? I don't know anymore.

7 0
3 years ago
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