Dr. Joseph is testing whether blood hounds are able to smell people wearing specially designed, air tight body suits. In his experiment, a man wearing such a bodysuit hides in a forest, and a bloodhound tries to trail hit send. Dr. Joseph walks along with the bloodhound and monitors its progress. For the results of the experiment to be useful, which of the following should Dr. Joseph do?

Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.