Which of the following statements is true?

Mutations provide organisms with what they "need" to survive.

Microevolution is based on fossils, geology, and comparisons to living organisms.

Both plants and animals are autotrophs because they can make their own food.

Parasites often show cospeciation because they must evolve with ther hosts.

Parasites often show cospeciation because they must evolve with ther hosts.

Explanation:

can you attach a picture of the lettuce? : )

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.