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.
I'm pretty sure the answer is B, but don't hate me if I'm wrong
The Guayas River flows through Guyaquil, which is the largest city in
Ecuador. However, it is not the capital city, which is Quito. The Guayas
River has it's name, because it flows through the Guayas province. The
Guayas River does not flow into any ocean or sea. Guayaquil is also the
most populated in Ecuador. The city underwent relatively recently an
"urban renegation" to attract more tourists to that particular region of
Ecuador. This was also to help boost the economy, since at the moment
it mostly consists of small and medium businesses, agriculture and
aquaculture.
<span>Poland has both a maritime and a continental climate because its climate is tied to the Atlantic Ocean.</span>
Answer: Gravity made the dust and gas in the nebula collide, flattening these materials into a disk.
Explanation: The nebula theory is a scientific explanation of how the planets and our solar system were formed. It suggests that our solar system was formed more than 4 billion years ago due to the effect of gravity on a cloud of gas and dust which were flattened into a disk. The gravity was so great that the matter in the nebula were made to collide against each other until they were compacted to form our sun.
