Answer:
I think she should try the experiment one set with fertilizer, and one without. The negative control group would be the set of rose bushes grown without the fertilizer, but under the exact same conditions as the experimental group. Then, if a difference is seen you can be sure it's accurate, since you tested with and without fertilizer under the same conditions. Sorry if i am wrong, I am not completly sure about this one. Again I might be wrong so sorry in advance.
<span>Observation of the solar system support the nebular theory because all planets orbit the sun in the same direction and in roughly the same plane.</span>
Answer: by delivery through pipes and it is quite simple to access the water from the home itself
Explanation:
Answer:
Nucleus, Chromosomes, Bases, gene
Explanation:
