Answer:
The theory given in the science requires the proof. The experimental procedure and observation must be done to make any statements as the scientific theory.
The other scientists can ask question and make controversy about the particular scientific theory. This might occur when the theory affects the moral standards are blended with the phenomena of the nature. The controversy might also occur if its effects the ethics and against the laws of nature.
I think the kind of choices would be primary or secondary source: and this would be a secondary source:
a primary source would be the journals where the results were published and the secondary would be the tv program that used those reports as a primary report!
so the answer is secondary source!
Lizard belongs to chordate phylum.
hope it helps you.
Honey has more calories than sugar, so sugar is healthier