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Name two ways in which meiosis produces genetic variation.

Independent segregation (of homologous chromosomes) Crossing over Random assortment

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Explain how the body responds to a fall in water potential.

Providing there is a basic understanding of the anatomy and functioning of the kidney, we can start by stating that the homeostatic control of osmoregulation in the blood is achieved by h...

Answered by Alexandra S. • Biology tutor

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Given f(x): 2x^4 + ax^3 - 6x^2 + 10x - 84, and knowing 3 is a root of f(x), which is the value of a?

For this exercise we need to be aware of the factor theorem.The factor theorem states when f(c) = 0 then x - c is a factor of the polynomial f(x) and c is a root of f(x). Because we are told that one of t...

Answered by Sabela R. • Maths tutor

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Compare the views of Sources A and B about commemoration and remembrance.

Sources A and B both agree to a broad extent about the agreement on the site of the Scottish National War memorial and it should be in the capital city, Edinburgh. Secondly, Sources A and B also agree on ...

Answered by Megan C. • History tutor

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Find a quarter of the area of a circle with a diameter of 10cm.

To find a part of the area we need the whole area first.
Find the formula for the area of a circle: A= pi x r²
We have been given the diameter so we need to work out what the radius ...

Answered by Joseph S. • Maths tutor

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