What happens during the s subphase of interphase?
a) the dna replicates, producing two copies of each chromosome.
b) the sister chromatids move to opposite poles.
c) the cell separates into two daughter cells.

During a hot day, warm and moist air rises and cools in the atmosphere. which even would occur next on such a day? a. condensed droplets would gather to become water vapor. b. water vapor would condense into tiny droplets. c. water droplets would evaporate to form rain and snow.

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

How can you approximate the number of calories required to keep you in energy balance?