A scientist wanted to find out if runners finished a race faster if they ate
beforehand. The scientist had four runners eat a meal and then complete a
race. A few days later, the scientist had the runners complete the same race
without eating. What is the best way for the scientist to analyze the data he
collected?

the best way for him to collect the data is that make one group control group and then other with eating too much or not eating at all.

control group should be: eating enough like not too much not less.

Explanation:

( love to help) :)

well we can't tell you because we cant see the time give a screen shot or something.

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.