How do magnetic stripes of iron in ocean rock provide evidence of seafloor spreading? They show when Earth's poles reversed.
They show how the density of the seafloor has changed.
They reveal a matching pattern on either side of the ridge.
They reveal differences in the mineral composition of newly created rock.

Students will complete the star 360 test once a quarter t or f

Which of these terms are associated with communication between neurons? chemical signals, electrical signals, synapse chemical signals, synapse, neurotransmitters synapse, electrical signals, chemical signals synapse, electrical signals, neurotransmitters

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.