Amountain can affect climate by a. absorbing more solar energy at the peak than at the base of the mountain. b. causing precipitation to fall mostly on one side of the mountain. c. pushing a cool air mass back out over the ocean. d. interfering with air currents and affecting earth’s rotation.

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

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.