I don't know these answers....HELP!! thanks!!?

Question

The lower the pH of a solution, the___
A. greater the # of oxygen atoms
B. higher the OH- concentration
C Less toxic the solution
D. More Basic the solution
E. More acidic the solution

2. What is the diff b/w a tissue and an organ system?
A. Tissue can't exist unless it is a component of an organ system, wshereas an organ system can exist independently of tissues
B. An organ system includes tissues
C. Tissues are not considrered to be living;organ systems are considreed to be living
D. The tissue level of organization is more inclusive than the organ system Level
E. Tissues are not composed of cells;organ systems are composed of cells

3. An Atom with a potitive charge has___
A. More neutrons than protons
B.more protons than neutrons
C. More protons than electrons
D. More electrons than protons
E. Equal numbers of proton electrons and neutrons

Answer 1

Okay here you go...these are 100%
#1 The lower th pH the more acidic it is. (E)
#2 The organ system is made of groups of tissues that perform specific functions (A)
#3 Atoms with a positive charge have more PROTONS than Electrons(C)
* protons have a pos charge of +1, Electrons have a neg charge of -1, neutrons are NEG, Positive protons cancel neg Electrons

Answer 2

1. E. More acidic the solution
pH scale is stupid
2. B. An organ system includes tissues
Tissues are everything you blow your nose with
3. C. More protons than electrons
Protons are positive, electrons negative

Answer 3

More Acidic the solution, don't know 2, more protons than electrons

Answer 4

1. D
2. B
3. C

Answer 5

1. E

2. ?

3. C