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Discuss the evolutionary order of appearance of the mitochondrion, chloroplast and ribosome, explaining your reasoning

By considering which organisms have each of the referred organelles, we can infer their evolutionary order of appearance.Ribosomes are present in every living cells, whereas mitochondria and chloroplasts ...

Answered by Maria P. • Biology tutor

4278 Views

What is the Cosmological argument?

The cosmological argument is effectively an argument that states the very existence of the universe is strong evidence for the existence of God. This argument is 'a posteriori' (meaning that it is an argu...

Answered by Covi F. • Religious Studies tutor

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How far do you agree that the limited appeal of Mazzini’s ideas was the main reason for the slow progress of national unity in Italy in the years 1830-49?

Despite his desire to see a nation state built by “the people”, Mazzini failed to attract the support necessary for the movement to grow due the inaccessibility of his ideas and thus slowed the progress t...

Answered by Tallulah A. • History tutor

2375 Views

log3 (9y + b) – log3 (2y – b) = 2, Find y in terms of b.

Use laws of logarithms to simplify.Log₃((9y+b)/(2y-b)) = 2(9y+b)/(2y-b) = 3²(9y+b) = 9(2y-b)9y+b = 18y-9bCollect terms.9y = 10by = 10b/9

Answered by Roy A. • Maths tutor

8411 Views

Please demonstrate, in a drawing of a cube, how you would shade and blend effectively using graphite pencils, utilising the different pencil grades (explaining the difference between pencil grades).

Would first have them demonstrate on the webcam how they would shade and blend on a simple drawing of a cube. Having them draw a cube will force them to consider perspective, while allowing them a simple ...

Answered by Jessica L. • Art tutor

1774 Views