Question

When scientists analyze a rock for its age they are able to determine what events occurred and how it affected life.

What do scientists deduce from this?

A.
over time life on earth has changed

B.
that life on earth has stayed the same

C.
determine which fossils are more dense

D.
determine soil settling rates on earth

Answer 1

Imagine an island inhabited by a large population of a certain kind of creature—let’s call them furberts. Let’s call our group of furberts “Population A.” Now, imagine that a powerful hurricane picks up about half of the furberts (remember, you’re imagining this) and blows them to another island. Let’s call this group “Population AB.” As everyone knows, furberts can’t swim, so there’s no way for the furberts in Population AB to get back to their old island.

Because all the furberts in Population AB are isolated from the furberts in Population A, they cannot interbreed. It turns out that the furberts in Population AB ended up on an island very different from their old island. As time passes, one generation following another, the offspring of the AB furberts become adapted to their new conditions. The AB furberts soon all have long snouts and short curled claws—very different from the pug noses and short, stubby claws of the A furberts back on the old island.

Which process led to the changes in the furberts of Population AB?

A.
natural selection

B.
stabilization

C.
mating ritual changes

D.
DNA reversal

Answer 2

@ganeshie8

Answer 3

@paki