“A mutation is a deform in a gene the throws off the form in an organism so the form in an organsim would be changed because of the deform.” -Answers.com
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<span>Molecular clock is a scale which uses a technique whereby evolutionary time for different life forms is deduced from the mutation rate of biomolecules. Biomolecular data used for calculations in order to come up with the prehistoric time scale normally uses nucleotide sequences for DNA or amino acid sequences for proteins.
Hence, in order to develop a molecular clock, one would need: a sequence of molecules, the rate at which changes occur in a type of molecule and how much total change has occurred in a type of molecule from different species.</span>
Answer:
Natural Selection
Explanation:
Meeting space requirements
Apocrine glands secrete in response to emotional stimuli
