Which of the following includes all the others? A) atom? B) cell? C) organism? D) population 2. In science, a hypothesis mus

Question

1. Which of the following includes all the others?

A) atom 

B) cell 

C) organism 

D) population

2. In science, a hypothesis must be 

A) testable 

B) derived from a theory 

C) a known fact

D) able to be proven absolutely true

3. A chlorine atom has 17 protons, 18 neutrons, and 17 electrons. The atomic number of chlorine is 

A) 8 

B) 17 

C) 35 

D) 52

4. If you place the probe of a pH meter in lye or sodium hydroxide (NaOH), it will read pH 14. Sodium hydroxide is 

A) an acid 

B) neutral