Which choice is an abiotic factor of an ecosystem? A. minerals
B. fungi
C. ants
D. dogs
PLEASE HELP WILL GIVE BRINLY

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.