Which is not a characteristic of life?
o obtaining and using energy
o maintaining homeostasis
o having cells
o movement

Number and variety of living organisms includes genetic, species, and ecological types

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

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.