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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 an ...
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Answered by Tom H. • Biology tutor
3462 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 reproducti...
MK
Answered by Mark K. • Biology tutor
3590 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, or expecting etc....
MR
Answered by Mylan R. • Spanish tutor
2394 Views

Is the UK suffering from a participation crisis?

Yes – Low turnout at elections undermines the legitimacy of the result Turnout at the 2015 General Election was 66.1%, far below the high levels of the 1970s, where it reached 78.8% in 1974. Of the 66.1% of ...
HD
68606 Views

What are the different conditional constructions in Latin and how do I spot them?

Conditionals are formed of 2 clauses: the ‘if’ clause (the ‘protasis’) and the ‘non-if’ clause (the ‘apodosis’). Normally, conditionals are introduced by si (‘if’) or nisi (‘if not’, ‘unless’) and can broadl...
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Answered by Nick H. • Latin tutor
4127 Views