If modern scientific tools are not available, what are two things that scientists can use to hypothesize if two different species are closely
related

Which of the following terms describe a liquid molecule that has only single bonds between its carbon atoms

Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?

What causes eclipses? check all that apply. earth's rotation on its axis moon's shadow covering the sun earth's shadow covering the moon earth's orbit and moon's orbit occasionally aligning the moon and sun's gravity pulling in the same direction