What is the difference between an optical and an electron microscope?

Assuming average nucleosome spacing throughout the genome, how many molecules of histone H2A are present in the chromatin of one somatic human cell after DNA replication but before cell division?

Which word identifies the hanging icicle-shaped formations in caves that are created by deposition?

Which idea was Lamarck's theory of Evolution based upon? natural selection variation in populations inheritance of acquired traits descent with modification

Which cell is in the "in between" phase of mitosis

The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins?

Which one of the following molecules is a by-product of cellular respiration? a. Glucose b. Oxygen c. Pyruvate d. Water

The force of gravity action on a child's mass on earth is 490 Newtons. What's the child's mass?

If you were called away during the electrophoresis procedure and were not able to monitor your electrophoresis run, what do you think would happen if the electricity were to remain running in your absence

Why does the left ventricle have a thicker wall than the right ventricle? a. a more muscular wall is required to supply the pumping that powers the flow of blood into the systemic circuit b.

Which of the following statements supports the concept that organisms are still evolving? A: The increasing population of humans. B: The decreasing number of fossils found in rock. C: The increasing need for new antibiotics and medicines.