Oxygen has an atomic number of 8. the n = 1 energy level has two electrons, and the n = 2 energy level has six electrons. oxygen's valence is

Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds

The allele for curly hair is incompletely dominant. if a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents? 25 percent 50 percent 75 percent 100 percent

_is a product of the first stage of photosynthesis.atpglucosecarbon dioxidewater