determine the ionic characteristics of this element. oxygen

electrons can donate 0, 1, 2, -1, -2, or +2
electrons can receive 0, 1, 2, -1, -2, or +2
valence (incl. + or -) 0, 1, 2, -1, -2, or +2

Marianne is comparing two animals: a fruit fly and a fruit bat. she asks, "do a fruit fly and a fruit bat share a common ancestor in their evolutionary history? " according to evolutionary theory, what is the answer to marianne's question?

An easy way to calculate the amount of energy available at each level is to what?

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.