PLEASE HELP ASAP 1. Assess - Do you think that because the United States uses more carbon, that we have a bigger responsibility to solve the problem than other countries that use less? Why or why not?

2. The Carbon Tax - Do you think Americans should pay a tax on the amount of emissions they use? Why or why not?

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

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.

Which of the following explains why a tree is often used as a model to represent the principle of common descent