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Oksanka [162]
3 years ago
8

What causes the different time zones?

Biology
1 answer:
Korvikt [17]3 years ago
5 0

Answer:

The need for continental time zones stemmed directly from the problems of moving passengers and freight over the thousands of miles of rail line that covered North America by the 1880s. Since human beings had first begun keeping track of time, they set their clocks to the local movement of the sun.

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What is the overall net gain of atp in aerobic respiration per one molecule of glucose?.
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38 ATP MOLECULES

Explanation:

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Why is urine more concentrated in the morning?
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<span>Most people's urine is darker in the morning as the kidneys work hard during the night to remove impurities and the urine is more concentrated.</span>
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What are some treatments for cancer? Select all choices that apply.
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Hellppppp please will give brainliest ​
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Label the animal cell diagram given below
diamong [38]

Answer:

1. mitochondria  

2. centrioles

3. lysosome

4. cytoplasm (cytosol)

5. nucleolus  

6. nuclear envelope

7. chromosomes

8. cilia

9. Rough endoplasmic reticulum

10. Golgi apparatus  

11. citoesqueleton  

12. vesicles

13. ribosomes

14. smooth endoplasmic reticulum

15. cell membrane  

Explanation:

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