Astudent found a map of polar bear movements online. each bear's position
is signaled from a collar on its neck, via satellite, to scientists and then to the
website. which technology makes this possible?

a- all cells come from pre-existing cells

silt loam

hope this

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.