Answer:Wildebeest are considered keystone species because their presence has myriad effects on the ecosystem, unlike those of any other species. Wildebeest are the "lawnmowers" of the Serengeti grassland. They keep grass short which in turn reduces the frequency of fires.
Answer:
Both hold bodies of water above and underground.
Explanation:
Answer:
Hope it helped you brainiest plz
Explanation:
The first one is called air mass which it describes the humidity. this is form over the ocean called maritime air masses,
The second one is describing the air mass which may depend in the latitude where it is formed.
Answer:Control involuntary movements and actions.
