Being timed
in what ways do coastal mountains affect a region's climate? check all that apply.
they determine the way that large masses of cool, dry air move over land.
they control the amount of water vapor present in cool, dry air masses.
they increase precipitation on the windward sides of mountain ranges.
they force cool, moist air from oceans to rise as they move toward land.
they decrease precipitation totals on the leeward sides of mountain ranges.

Two true-breeding pea plants were crossed. one parent is round, terminal, violet, constricted, while the other expresses the respective contrasting phenotypes of wrinkled, axial, white, full. the four pairs of contrasting traits are controlled by four genes, each located on a separate chromosome. in the f1 only round, axial, violet, and full were expressed. in the f2, all possible combinations of these traits were expressed in ratios consistent with mendelian inheritance. (a) what conclusion about the inheritance of the traits can be drawn based on the f1 results? (b) in the f2 results, which phenotype appeared most frequently? what mathematical expression predicts the probability of occurrence of this phenotype? (c) which f2 phenotype is expected to occur least frequently? what mathematical expression predicts this probability? (d) in the f2 generation, how often is either of the p1 phenotypes likely to occur? express your answer as a fraction (example: 3/16).

Punctuated equilibrium verses gradualism have long been contested as ways in which species evolve. choose the best evidence for gradualism.

What is the difference between bacterial infections and viral infections?