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Homeostasis is the maintenance of a constant internal environment in organisms despite external changes. Homeostasis ensures that cells within an environment are able to meet their needs and function appr...

A niche is the functional area within which an organism exists. This can be a specific habitat it inhabits, how it shelters itself, a food source it can exploit and can include all abiotic or biotic inter...

A virus is non-living and cannot be treated by antibiotics, they do not have a cell wall. Viruses are generally smaller and require a host to survive. A bacteria can be affected by antibiotics and can sur...

As this question is worth 6 marks, 6 different points need to be made to get all the marks. These could be two from each structure that is given. The teeth in the mouth break down food into smaller pieces...

First write a key for the alleles. (normal Allele=T. CF allele=t) If the mother is normal= TT Father is a suffer =tt. Then Draw a punnet diagram for the child Write a key for the punnet diagram. TT-normal...