Heterotrophs conduct cellular respiration and use what 2 things? 1. Water and Carbon dioxide
2. hydrogen and oxgyen
3. chemical and physical

a. as the temperature increases, the kinetic energy of the gas molecules increases & the molecules move faster & further away from each other.

b. if you decrease the temperature of a fixed amount of gas at constant pressure, the combined gas law reduces to charles's law. in this case, volume will also decrease.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

a covalent bond, specfically triple bond

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project