If you are growing a culture of bacteria (150ml) in the incubator, (a) what size flask should you use, and (b) should you cap the tube tightly or keep the cap loose? why?

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous