It tells us that there is selection pressure in that particular habitat that selects for individuals with these alleles.
In the case of sickle cell, malaria is the selection pressure as individuals with the sickle cell trait are more resistant to the deadly malaria.
The answer is nucleotides.
Succession is a thing that happens to forests or other ecosystem landscapes.
Answer:
Bacteria and Archaea
Explanation:
The prokaryotes are classified into two domains, the bacteria and the archaea domains. This makes them unique as the other organisms fall into one of the three domains, not in two of them. The prokaryotes come in many different shapes. They all do fall into three categories, bacilli (which are the rod-shaped prokaryotes), spirilli (which are the spiral-shaped prokaryotes), and cocci (which are the spherical shaped prokaryotes).
