What is your opinion on the reintroduction of the gray wolf? Should ranchers be able to kill any wolves they see, only the ones that kill their livestock, or none at all? Should the wolves never have been reintroduced? Write a paragraph stating your opinion on these questions and give reasons to support your opinion. Your paragraph must be at least five sentences long.

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

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.