Bacteria that survive an attack by viruses save a part of the virus's in their own genetic code in a DNA archive called CRISPR until it is needed.

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane? a. both make it possible for the conditions in the interior to be different from the conditions outside. b. both provide a barrier that keeps water from flowing across it so the interior remains dry. c. both separate the rna that forms in the interior from any rna that might form in the environment. d. both can actively move molecules into the interior or out into the surrounding environment.

Match the types of competition to their descriptions

The cluster of developing cells from conception until birth is called an