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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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9. Ancient romans believed volcanic eruptions signaled what?
boyakko [2]

Answer: The transition from Republic to Empire.

Explanation: ...

5 0
2 years ago
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"Superior vena cava carries completely digested substances"
Savatey [412]

Answer:

Yes.

Explanation:

As a blood vessel, Superior vena cava carries completely digested substances that is present in the blood from upper part of the body to the heart. Blood is a fluid that transport digested food from small intestine to other parts of the human body. It also carries oxygen from the lungs to the cells and also carries carbondioxide from the cells to lungs so we can say that Superior vena cava carries completely digested materials.

6 0
2 years ago
Which describes the four cells that are produced at the end of meiosis? identical haploid cells genetically different diploid ce
amid [387]
Genetically different haploid cells
3 0
2 years ago
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The relationship of structure to function is one of the major themes in biology. For three of the following structure/function p
Elis [28]

Answer:

The function of  biomolecule inside our body system fully depends on the structure of that biomolecule.It is because the functional groups that participate in a  chemical or biochemical reactions are arranged in a specific array in the structure of that biomolecule or macromolecule.

Explanation:

a enzyme structure/catalysis   Enzymes are proteinecious in nature.Enzyme contain various amino acids in its active site such as histidine,serine,glutamic acid etc The amino acids of the active site of that enzyme interact with the substrate resulting in the formation of the product.

b mRNA structure/protein synthesis mRNA or messenger RNA consist of nucleotide sequence.The 3 concequetive nucleotides of an mRNA is termed as codons.Each codon codes for specific amino acid.The so formed amino acid linked with the adjacent amino acid by peptide linkage.

c cell membrane structure and signal transduction cell membrane contain various surface protein that act as receptor to detect signals by binding with signaling molecule during signal transduction process.

7 0
2 years ago
The slope is also know as
siniylev [52]

Answer:

rise over run

Explanation:

rise refers to the number of units going u or down a graph

run refers to the number of units going left or right

it is seen as so; \frac{rise}{run} , \frac{ delta y}{deltax} , or   \frac{y_{2}  - y_{1}}{x_{2} - x{1}}

Don't panic when I included "delta". Delta, it refers/means the small mathematical triangle found beside the rise and run symbols of y and x

3 0
2 years ago
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