According to nasa scientist bruce jakosky, the ability to utilize energy from some source to drive chemical reactions is one of the three important characteristics of life. in the students' experiment, what served as an energy source for the yeast?
a. water
b. sugar
c. oxygen
d. light

Which diagram best represents the chromosomes that would be found in a two new skin cells produced as a result of this process?

What are potential sources of error in marta’s experiment

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a.changes in genetics in human populationsb.antibiotic resistance in bacteria populationsc.pesticide resistance in garden insectsd.changes in the color of the peppered moth population in england