A light microscope with an objective lens numerical aperture of 0.65 is capable of allowing two objects 400 nm apart to be distinguished when using light with a wavelength of 420 nm.
Answer the following statement true (T) or false (F)
True
You might also like to view...
An opening at one end of the gastrointestinal tract that functions in mechanical digestion and the breakdown of carbohydrates by secreting amylase.
A) Large intestine B) Stomach C) Esophageal cancer D) Appendix E) Mouth F) Salivary glands G) Rectum H) Cirrhosis I) Gallbladder J) Small intestine
Suppose you conduct an experiment in the laboratory in which you add increasing amounts of substrate to a solution containing an enzyme and a pH buffer. You incubate the container at the optimal temperature for the enzyme. Each time you add more substrate, you measure the rate of the reaction. Also suppose that you graph the results such that the x-axis shows the substrate concentration and the y-axis shows the resulting reaction rate. What will you find over time?
a. The rate of the reaction will increase rapidly, taper off, and plateau. b. The resulting graph will be a perfect bell curve. c. The rate of the reaction will increase slowly, plateau, and then drop sharply back to zero. d. The rate of the reaction will proceed with a slope of 1 and continue in a linear fashion indefinitely or until you run out of reactants.
A(n) __________ dominates bryophyte life cycles.
Fill in the blank(s) with the appropriate word(s).
Which list accurately orders a food chain in the grasslands of Africa from low to high trophic levels?
A) grass, giraffes, lions, vultures, fungi B) grass, fungi, giraffes, vultures, lions C) grass, lions, giraffes, fungi, vultures D) grass, fungi, lions, vultures, giraffes