Why bother with Sex? (Sexual vs Asexual strategies)

Almost all organisms on the planet are a result of sexual reproduction, sex must be an advantage. Find out about some organisms that reproduce by asexual reproduction. What are the costs/benefits??
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The reproductive role of Flowers

Find out about the costs and benefits to plants of flowering and how plants avoid self pollination (remember pollination is defined as the transfer of pollen to stigma whereas fertilisation is when the male gamete/pollen fuses with the female gamete/egg. Click here

Selective breeding in Cattle

Click on the following link to find out about how humans have developed over 800 breeds of cattle. Selective breeding is when we 'select for desirable traits' by controlling which parents breed together. Examples can be seen in cat and dog breeds, flowers and vegetable crops.

Sexual and Asexual Reproduction in plants

Roots and shoot growing from an Avocado seed (sexual); roots growing from an African Violet cutting (asexual) , roots growing from an Orchid offset (sexual)

BBC Bitesize - Variation, Natural Selection

Explore these BBC pages to find out more about classification, variation, natural selection and genetic engineering.
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An activity can be found here