2. Compare and contrast some features of prokaryotic and eukaryotic cells. Write the letter "P", for prokaryote, or “E”, for eukaryote, next to each description.
a. Multiple chromosomes
b. DNA in cytoplasm
c. Single, circular chromosome
d. Membrane-bound nucleus
e. DNA inside nucleus
f. Lack of membrane-bound nucleus

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

meiosis is the correct answer

the question isn't complete here so i can't right an answer '_'

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.