Which of the following statements about resource use is true?
a. the use of renewable resources has no inherent costs.
b. resource use, whether renewable or nonrenewable, must be carefully managed to reduce the impact on the environment.
c. nonrenewable resources are used for energy, because there are no renewable resources that can be used as a source of energy.
d. the overuse of nonrenewable resources is less environmentally damaging than the overuse of renewable resources.

Akrabby blind whale has married pearl who has normal vision. oneof their two sons is also colorblind. what arr the genotypes of the parents?

Asegment of dna that codes for rna and a protein is a

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.