How is the number of individuals in a biological indicator species population related to the health of the water system? A. If the number of individuals shows a steady decline, the health of the water system is also declining.

B. If the number of individuals shows a steady increase, the pollution in the water system is also increasing.

C. As the number of individuals increases, the population becomes a better biological indicator species.

D. As the number of individuals decreases, the population becomes a better biological indicator species.

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

How hot is the suns corona? (integrated science)