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    FSH : matures egg, stimulates production of oestrogen
    Oestrogen: Thickens uterus wall, stimulates LH, inhibits FSH
    LH: Releases mature egg


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    (Original post by tmansfield039)
    Have a thick fur and fat under skin to keep warm, have small surface area to volume ratio to conserve energy. Have small Ears to reduce heat loss.

    Q. What does FSH do and where is it produced?


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    FSH stimulates the maturation of eggs and also stimulates the production oestrogen, it is produced in the pituitary gland.

    What is a clone?


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    (Original post by dhruvap)
    A balanced diet is a diet containing food from all the different categories of food, for example Proteins, carbohydrates and Fats in the optimum quantity.
    It's best to say to suit an individuals needs but you will still get he mark

    What is an advantage of preserving an endangered species? (1 mark)
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    (Original post by srmed)
    FSH stimulates the maturation of eggs and also stimulates the production oestrogen, it is produced in the pituitary gland.

    What is a clone?


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    A clone is an identical copy of another organism it is produced by asexual reproduction as it contains the genetics of one parent.
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    Individual that is genetically identical to the parent.

    Q: what werent darwins ideas believed at first?


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    (Original post by IsaacVB)
    It's best to say to suit an individuals needs but you will still get he mark

    What is an advantage of preserving an endangered species? (1 mark)
    Preserving endangered species would allow the ecosystem to work efficiently and therefore provide humans with resources nature has to offer.
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    what did ignas semmelweis do?
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    (Original post by srmed)
    FSH stimulates the maturation of eggs and also stimulates the production oestrogen, it is produced in the pituitary gland.

    What is a clone?


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    A clone is offspring produced by asexual reproduction

    Q: What is biomass?
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    (Original post by dhruvap)
    Explain how lichens can be used to detect environmental changes.
    Lichens are used to detect air pollution. The higher the number of lichens in an area, the less air pollution there is. In contrast to that, the lower the level of lichens in an area, the more polluted the area is. An example of an area with high numbers of lichens is a countryside (far away from a city). An example of an area with low numbers of lichens is a city.


    Describe what occurs when you step on a pin. (6 marks)
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    (Original post by tmansfield039)
    Individual that is genetically identical to the parent.

    Q: what werent darwins ideas believed at first?


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    Darwin's theories weren't accepted as he lacked evidence to back up his proof & also because science hadn't developed to the point where genetics and DNA were discovered.
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    (Original post by IAmAnTroll)
    A clone is offspring produced by asexual reproduction

    Q: What is biomass?
    dry mass of an organism
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    (Original post by tmansfield039)
    Individual that is genetically identical to the parent.

    Q: what werent darwins ideas believed at first?


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    There was a lack of evidence
    People believed in God at the same time so there were conflicting ideas
    Darwin couldn't explain why there was variety in organisms

    Q: How does genetic modification work (4 marks)
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    (Original post by LaurenHannahL)
    Polar bears have a thick layer of blubber which act as an insulator
    The have a large surface are to volume ratio which helps them store heat
    They have small ears which prevent heat loss
    They are white which helps them camouflage into the snow to hide them from predators
    They have a thick coat which acts as an insulator

    Question, What are the different hormones in the menstrual cycle and what do they do?
    FSH - Matures an egg in the ovary, inhibits (Progesterone)
    Oestrogen - Thickens the uterus lining, inhibits FSH, stimulates LH
    LH - Releases a matured egg from the ovary, inhibits Oestrogen, stimulates (Progesterone)

    (Optional) Progesterone - Maintains uterus lining, inhibits LH
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    (Original post by JustasB)
    Lichens are used to detect air pollution. The higher the number of lichens in an area, the less air pollution there is. In contrast to that, the lower the level of lichens in an area, the more polluted the area is. An example of an area with high numbers of lichens is a countryside (far away from a city). An example of an area with low numbers of lichens is a city.


    Describe what occurs when you step on a pin. (6 marks)
    you get tetanus
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    (Original post by Ajad)
    what did ignas semmelweis do?
    Ignaz semelwies introduced the concept of antiseptics. He first implemented his theory in the hospital he worked at in 1840s that helped to cut the deaths of women after pregnancy as it killed bacteria and diseases.
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    (Original post by IAmAnTroll)
    There was a lack of evidence
    People believed in God at the same time so there were conflicting ideas
    Darwin couldn't explain why there was variety in organisms

    Q: How does genetic modification work (4 marks)
    Genetic modification invloves using enzymes to splice desired genes, they are then transferred into another organism/plant where they are inserted to give the organism/plant the desired characteristics.
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    describe a modern cloning technique? (6 marks)
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    (Original post by Ajad)
    you get tetanus
    That was a 6 mark question.
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    (Original post by Ajad)
    describe a modern cloning technique? (6 marks)
    which one... adult cell cloning or embryo transplants or tissue cuttings?
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    (Original post by dhruvap)
    which one... adult cell cloning or embryo transplants or tissue cuttings?
    any
 
 
 
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