Nature of Matter Worksheet

• A pure substance containing only one kind of

A pure substance containing only one kind of ( atom )

Explanation:

Since it is one atom it is an element. An element is a pure substance that cannot be separated into two materials unlike a compound. This makes the substance pure. Like melting or cutting a gold bar into gold nuggets. It's still gold but it isn't the same shape but same density.

Hope this helps

- massmaster34

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation: