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Cystic Fibrosis is caused by a mutation in the CFTR gene. The mutation causes a small change in the DNA's base sequence which codes for a different sequence of amino acids and therefore as a result, th...

Leaves have 4 main adaptations which enable them to carry out photosynthesis successfully. 

1) Thin - this allows carbon dioxide to easily diffuse into the leaf cells 

2) Tr...

Homeostasis is the process of maintaining a constant internal environment in the body.

An example of this is maintaining the temperature of the body. Human body temperature must be mainta...

1. What is ‘survival of the fittest’?

- ‘Survival of the fittest’ is a phrase way to describe the principle behind the theory of evolution by natural sel...

For a new species to form, first 2 groups of animals or plants must become physically spearated to form 2 different groups.

Each group will have genetic variation...