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a) Name a hormone secreted by the ovaries (1 mark). b) A female takes a contraceptive pill that increases the body's levels of progesterone. Explain what effects this has on the female's body and what effects that it has on her other hormones (3 marks)

a) Oestrogen or Progesterone b) FSH stimulates follicles in the ovaries to mature while progesterone has a "maintenance" function as it maintains the lining of the uterus. Progesterone also has ...

Answered by Tom H. • Biology tutor

2847 Views

Solve to find x: 32x + 43 = -8x - 17

In order to find 'x', one must be able to isolate x on one side of the equation. This would be achieved firstly by adding +8x to both side of the equation:The left hand side would thus look like this: 40x...

Answered by Francis B. • Maths tutor

3586 Views

Katie buys: 3 pens costing £2.20 each, 1 rubber costing £1.60 and 2 pencils. She pays with a £10 note and a £2 coin. She gets 20p change. What was the price of each pencil?

You can put this question into the form of an equation in order to solve it.Step 1: The total cost of the items is (10+2)-0.20= £11.80. Step 2: putting it in equation form: let x be the price of 1 pencil,...

Answered by Juliette W. • Maths tutor

4054 Views

Describe evolution by natural selection and how this may lead to speciation?

A given population of biological organisms will show considerable genetic variation. This is initially (relatively speaking) a result of random mutation. However, as factors affecting survival and reprodu...

Answered by Mark K. • Biology tutor

3048 Views

When do I need to use the subjunctive?

In Spanish, the subjunctive mood is frequently used. A useful way to remember it is by using the acronym W.E.I.R.D.O:1) Wishes- the subjunctive will normally be used when wishing, wanting...

Answered by Mylan R. • Spanish tutor

1973 Views