Which of the following is true about cells? A. In general, eukaryotic cells do not have a true nucleus or membrane-bound organelles,
whereas prokaryotic cells contain both a nucleus and organelles enclosed by
membranes.
B. Both eukaryotic cells and prokaryotic cells always contain both a true nucleus that is
well-defined and organelles that are separated from the cytoplasm by membranes.
C. Neither prokaryotic cells nor eukaryotic cells ever contain both a true nucleus that is
well-defined and organelles that are separated from the cytoplasm by membranes.
D. In general, prokaryotic cells do not have a true nucleus or membrane-bound
organelles, whereas eukaryotic cells contain both a nucleus and organelles enclosed
by membranes.

Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.

Which organelle breaks down sugar molecules that supply energy to the cell ?

The carrier molecules of the electron transport system are located in the