If a baker making chocolate chip cookies accidentally misreads a recipe and adds something extra, forgets to add something, or adds the wrong ingredient, what can happen to the cookies?Explain how this analogy can be used to describe a mutation.

b) mutualism

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substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.