1.- b. Change in color.
It's change in color because the other can happen by via a physical change.
2.- d. A metal is added to an acid and hydrogen gas is formed.
A chemical change results in change of an object chemical structure being disrupted or altered.
The human ear has 3 bones(ossicles), (incus),and (stapes)
<span>The sugar arabinose in the agarose plate is needed to turn on the expression of the GFP (green flourescent protein) gene. The UV light is required to cause the GFP (green flourescent protein) protein within the bacteria to glow.</span>
Answer: A, Kingdom.
Explanation: The classification of living things has seven levels that become more specific as they go down.
Kingdom>Phylum>Class>Order>Family>Genus>Species
As you can see, Kingdoms are the largest and least specific, which means that they contain the most organisms. A way to remember the levels is by using the mnemonic "King Philip Came Over From Great Spain."