Describe how you produced summated contractions with the isolated muscles and how you produced a tetanus contraction. explain how summation of twitches is accomplished in vivo and how a sustained, complete tetanus contraction is produced.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

because photosynthesis could not occur (apex)