Charles darwin viewed the fossil record as
a) evidence that earth was a thousand years old - i know it isn't this one
b) useful support for his theory - i'm leaning towards this one
c) interesting but unrelated to the evolution of modern species
d) evidence that traits are acquired through use or disuse - i know it can't be this one either

Why would a drug that damages capsids treat a viral infection? a. capsids prevent the lytic cycle from beginning. b. transduction requires a capsid. c. viruses use capsids to increase genetic variation. d. capsids provide protection for viruses.

The production of cells during mitosis into specialized function is recombination or differentiation

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.