Answer:
Sympatric speciation
Explanation:
There may be more than one answer here, but concerning speciation, sympatric speciation can't occur because of the geographic isolation (must be living in the same environment for this to occur).
Answer:
C. cause and effect
Explanation:
<em>HOPE</em><em> </em><em>THIS</em><em> </em><em>HELPS</em><em> </em>
<em>Please</em><em> </em><em>mark</em><em> </em><em>me</em><em> </em><em>brainliest</em><em> </em>
The tiny structures inside of cells, such as Ribosomes or chloroplasts that have specialized roles are called organelles. These structures are found in the cytoplasm of eukaryotic cells and are enclosed with a membrane. These tiny structures are not present in prokaryotes like in bacteria.

your answer is given below..
The environment is rich in infectious agents that transmit disease through pathogens.