Question

question 10
0.25 pts
which of the following is not one of the characteristics of life?
digestion
balance
conductivity
circulation
reproduction
question 11
0.25 pts
substances that accept hydrogen ions are called:
acids.
bases.
buffers.
salts.
question 12
0.25 pts
which of the following is not one of the major elements present in the human body?
oxygen
zinc
carbon
potassium

Explanation:

Question 10

Characteristics of life include processes like digestion (breaking down food), circulation (transporting substances), reproduction (producing offspring), and balance (homeostasis). Conductivity is not a characteristic of life (it's more related to electrical properties of materials or some biological tissues but not a core life characteristic).

By definition, bases are substances that accept hydrogen ions ($H^+$). Acids donate $H^+$, buffers resist pH change, and salts are ionic compounds from acid - base reactions.

Major elements in the human body are oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus, etc. Zinc is a trace element (needed in small amounts), not a major element.

Answer:

Conductivity (the option with "Conductivity")

Question 11