Activity #1 1. Reset the system and make sure the Constant Parameter button is set to None. 2. Pump 50 heavy gasmolecules and 50 light gasmolecules in the gascontainer. How do the velocities of the heavy gasmolecules compare to those of the light gasmolecules? 3. Use the Heat Control to add energy. Notice that the thermometer shows an increasing temperature. What happens to the velocities of the gasmolecules? 4. Use the Heat Control to remove energy. What happens to the velocities of the gasmolecules?

Which best summarizes the finding of avery? a. some traits are recessive. b. humans reproduce sexually. c. dna is a transforming factor. d. traits cannot be inherited.

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto