In which direction does water move across membranes, up or down the concentration gradient? Define these 3 terms:

a. isotonic-

b. hypertonic

c. hypotonic

Theories basic to all of the life sciences include the germ theory of disease. theory of evolution by natural selection. o two of these answers are correct none of these answers are correct o cell theory.

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

During binary fission, what events must occur before the cell splits into two new cells?