______________ are instructions for making protein molecules and proteins molecules determine an organism's traits.

Over many generations, individuals with ____________ become more common in a population

Individual organisms inherit their genes from ________.

Whether or not a variation is helpful depends on the __________.

Individuals with ____________ variations are more likely to live longer and have offspring.

Changes to genes that can lead to changes to protein molecules, which can result in changes to traits are called ____________.

The ____________ of individuals with each trait in a population can change over time.

8) Parents choose the genes they pass down to their offspring.

9) Individuals in a population with _________ variations become less common.

10) ____________ is the number of traits represented on a histogram.

Mutations, which are changes to DNA lead to __________ of traits in a population.

Which is the current period of geologic time?

Is there fossil evidence that humans and dinosaurs existed at the same time?

About how old do scientists think the Earth is?

Dinosaurs existed in the Mesozoic Era. What did this period of geologic time end with?

What is the difference between artificial selection and natural selection?

Humans changed wolves into all breeds of dogs we have today by the process of artificial selection.

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