Because fire heats the air, making it much thicker and uses up oxygen. if it runs out of oxygen, it cant keep itself lit.
Euglena is a HETEROTROPH.
It has a heterotrophic mode of nutrition in darkness and has presence of chlorophyll
Answer:
One of these is natural selection, which is a process that increases the frequency of advantageous gene variants, called alleles, in a population. Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation.
Explanation:
