At-risk children who attend ahead start get better grades in reading in second grade. what is the control group & experimental group?

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

What advantages does a pedigree have over a written passage?