All of the alkali metals, group 1, have one valence electron. which of these would represent the oxidation number of the alkali metals such as lithium and sodium? a) -7 b) -1 c) +1 d) +7

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Which of the following would be least likely to support the modern concept of biological evolution? ( 2 points) a)different species of organisms with similar bone patterns b)different species of organisms with similar reproductive rates species in c)different domains with similar metabolic pathways species in d)different kingdoms with similar cellular structures.

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?