Lynn margulis proposed the mechanism of to explain the origin of mitochondria

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?

What happens during telophase? in advance : ) a. spindle fibers attach to the chrommatids. b. the mitomic spindle forms. c. the chromtaids are pulled apart. d. a new nucleus forms around each copy of dna.