How does the tilt of the earth on its axis affect the temperatures of these cities in the southern hemisphere?

a. earth revolves at a slower rate in december, giving both cities less sunlight.
b. the southern hemisphere is tilted toward the sun in december, giving city b more sunlight.
c. the southern hemisphere is tilted away from the sun in december, giving city a indirect sunlight.
d. earth is farther away from the sun during its revolution in december, giving both cities indirect
sunlight.

If assuming tasting ptc as a simple gene trait,what other genotype would you select to put in this missing genotype box that could result in this phenotype

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.

How far down have geologists drilled holes ? (science) a: 3.8 km b: 12 km c: 100 m d: 1200 km