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Place the steps of the scientific method in order:

Number the following levels of the heirarchy of life in the correct order from smallest to largest.

The smallest living thing is a(n)

The smallest scale of biological organization is represented by organelles.

An atom whose number of electrons does not equal its number of protons is called a(n)

Which of these is not a required characteristic of life?

In the figure the arrow is pointing to what body region?

If I want to weigh an elephant which unit of measure would be most appropriate?

If you had a choice of a new pet which one would you choose?

What is the function of sensory receptors?