Answer:
I guess 1 is plants and 2 is chlorophyll. thanks!!
Solution:
A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water (H2O). This is a dehydration synthesis reaction (also known as a condensation reaction), and usually occurs between amino acids.
Thus the required right answer is carboxyl group and other molecule.
No she needs to collect more data like for example have them run 60 meters and then 90 meters then take the average of the dog and cats time
