Answer the following about organisms that have catalase: a. What are you looking for in your observations when you are looking for evidence of a reaction?
b. Does the plant tissue that was tested contain catalase?
c. Does the animal tissue that was tested contain catalase?

What is thought to have caused the mass extinction at the end of the cretaceous period?

What is the role of the phospholipid belayer in cellular transport in living cells

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.