Secondary succession
Hope this helped (:
Atom
Molecule
Organelle
Cell
Tissue
Organ
Organ system
Organism
Answer:
Natural selection causes change in allele frequencies within a population.
So option A is correct one.
Explanation:
Natural selection generally work on an organism’s phenotype, or observable features. Phenotype is often largely a product of genotype (the alleles, or gene versions, the organism carries). When a phenotype produced by certain alleles helps organisms survive and reproduce better than their peers, natural selection can increase the frequency of the helpful alleles from one generation to the next – that is, it can cause microevolution.
Photosynthesis means like sun and plants it would be that numerical order in which this would compare to the broad and conjust modives