Compared to air in the alveoli, blood in the pulmonary artery contains which of the following?
a. higher concentrations of oxygen and lower concentrations of carbon dioxide
b. higher concentrations of oxygen and higher concentrations of carbon dioxide
c. lower concentrations of oxygen and higher concentrations of carbon dioxide
d. lower concentrations of oxygen and lower concentrations of carbon

Asap what occurs after cytokinesis is completed at the end of meiosis 1?

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.