Answer:
Option A, Key stone
Explanation:
A keystone species plays a major role in an ecosystem as it is the species whose presence effects all other species in the ecosystem .In general a keystone species is always a dominant predator that feed on prey population. If it is removed, the prey population will explode and the population diversity will reduce. For example - bison, prairie dog etc.
Hence, option A is correct
Answer:
The answer to the following question is Golgi.
Explanation:
The Golgi Body or the Golgi Complex is also known as Golgi Apparatus which is the secretory pathway and they also utilized in this secretory process.
It is the dispatch station and the major collection of the protein products which receive from the ER (endoplasmic reticulum )
It is found in most of the cell and it is organelle found inside the Eukaryotic cell.