Well, if you mean layers of the earth than the 1st one would be crust the second would be the mantle and the third would be the outer core.
Answer:
The answer is C)
Explanation:
The predators were unable to keep the population of the mussels down. The mussels took more area of the rock. Other species that needed space did not return to the tidal pool. Otters can also be keystone species as they eat urchins. By doing so, they prevent the sea urchins form eating all the kelp plants and removing the entire habitat for many other species. The Keystone Species theory shows that this impact of few predators, that made up a minor amount of the total species, could have such a high impact on the ecosystem.
Answer:
The us census, news, and reports. To help control the population to be at the appropriate number to prevent overuse of resources.
Explanation:
Can I have a thanks, 5 star and brainliets? Also tell me if I am right!!!?
Answer:
Explanation:
Hammer- inclined plane
door knob- wheel and axle
chisel- inclined plane
screwdriver- inclined plane
hatchet- inclined plane
seesaw- lever
slide- inclined plane
broom- lever
bicycle- wheel and axle
shovel- inclined plane
Hope this helps :)