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Describe the relationship between different hormones regulating the menstrual cycle?

There are 4 main hormones regulating the menstrual cycle. We can split them into 2 groups: FSH (follicle stimulating hormone) and LH (luteinising hormone) made by the pit...

Answered by Valeriya K. Biology tutor
3004 Views

What led to the Plum Pudding model being replaced by Rutherford's nuclear model of the atom? (6 marks)

The Plum Pudding model states that charge and mass is spread throughout the atom. An idea that electrons are spread within a mass of positive charge.Rutherford carried out an experiment where he fired hig...

Answered by Rachna P. Physics tutor
19653 Views

‘The Ontological Argument fails because existence is not a predicate.’ How far would you agree with this claim?

St. Anselm acknowledges this in his ‘Proslogian’ that his argument is based on the quote from Psalm 14:1. The Ontological Argument is an A Priori argument of which Anselm seeks to prove and validate God’s...

Answered by Imogen B. Philosophy and Ethics tutor
2639 Views

Can you describe four variables which affect the rate of a chemical reaction and how they affect the rate?

  1. Temperature: A higher temperature increases the rate of a reaction by increasing the number of particles with enough energy to take part in a reaction.
    2) Particle size: The smaller the particl...
Answered by Steven S. Chemistry tutor
1965 Views

In the presence of ultraviolet radiation, cyclohexane reacts with bromine. A mixture of cyclic products are formed, including C6H11Br. Discuss each step of this reaction providing equations to show the mechanism.

INITIATION: Br2 --> 2Br . The breaking of the Br2 bond from ultraviolet radiation forms two radicals, as one electron from the bond p...

Answered by Lisa K. Chemistry tutor
16572 Views

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