it simply means the cell's DNA is surrounded by a membrane. therefore the nucleus houses the cell's DNA and directs the synthesis of the proteins and ribosomes the cellular responsible for protein synthesis.
Answer:
Community
Explanation:
A community is all the biotic factors of an ecosystem. There are many populations of different species within an area. These populations in one area is a community. A community and its abiotic features is a ecosystem. Therefore, communities have the most individuals in an ecosystem.
I would say immigration only.
emigration would theoretically reduce the genetic variation as unique individuals leave, but immigration would bring unique traits into circulation in an ecosystem.
I'm not super great at biogy tho so this might not be right... :)
The method of virus transmission which results in a greater spread of disease is through airborne transmission
