Which describes a light microscope but not an electron microscope? a. uses a beam of light to produce magnified images
b. has very high magnification power
c. can be used to study cells and cell structure
d. requires a computer to operate

What are some things that limit population growth?

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o