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Biology
All levels

What are the structural and functional differences between arteries and veins?

Structural Differences

1. Arteries have a much thicker wall to withstand the high pressure of blood flowing in them, whereas veins<...

IC
Answered by Iro C. Biology tutor
70151 Views

What is evolution?

Mutations in individuals leads to variation in a population of a species. Some individuals have characteristics that makes them better suited to their environm...

AL
Answered by Ann L. Biology tutor
4152 Views

What is an allele?

Alleles are different forms of a gene. For example, given the gene for eye colour there would be many different colours available. People with brown eyes would have the allele of the eye colour gene co...

JD
Answered by Jessica D. Biology tutor
4965 Views

What is the key difference between the rough endoplasmic reticulum (RER), and smooth endoplasmic reticulum (SER)?

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