The digestive, circulatory, respiratory, immune, and excretory systems all work together to maintain homeostasis. discuss how a minor malfunction in one of these systems could lead to major malfunctions in others. if methods were developed to improve the efficiency and effectiveness of one system, what effect might that improvement have on the other systems?

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 are evidence of seafloor spreading? check all that apply. molten material magnetic stripes continent material drilled core samples ocean water samples

Which of the following terms would bb represent in an organism? a.phenotype b.genotype c.genetics