Which runs through all of the oceans? * O volcanic island arcs
O the mid-ocean ridges
O deep sea trenches
O seamounts and guyots

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

What is used to keep track of the gamates and possible offsprings combination

Which of the following graphs have the same wavelengths