If one were to horizontally divide the earth in half at the equator, each half would be a:
a. sphere
b. geocentric model
c. heliocentric model
d. hemisphere

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different

Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down