insertion is a type of mutation that? 1.)adds a base to the DNA sequence 2.) a change in every amino acid that follows the point of mutation 3.) a change in one or few nucleotides that occur at single point in the DNA 4.) involves the loss of all or part of a chromosome

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

What is the mass of 4 molecules of co2

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?