You are standing by a cliff far away from the ocean. You see a sedimentary layer with shells in it You are told the shells are from oceanie organisms. How do you think this layer formed?

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

i think i can answer even without the example. over time with environmental changes, sometimes a group of animals will adapt to better survive. take a moth for example. if the trees the moths use to camouflage themselves from predators, started to die or change colors themselves, the moths may, overtime of course, change color too. its just adapting to its surroundings. hope i was of any : )