Influenza, also called the “flu”, is a viral disease that affects humans and many animals. It most commonly causes a fever and respiratory problems. There are three groups ofinfluenza viruses<span>, called type A, B, or </span>C. Influenza<span> type A is the primary group affecting both humans and animals.
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Answer:
mutations to homologous genetic loci
Explanation:
Phylogenetic tree, which is a diagrammatic representation of evolutionary relationship among organisms, can be constructed from evidence from molecular systematic with regard to the similarities in the mutations to homologous genes.
Homologous genes are genes that are inherited by two species from a common ancestor having similar DNA sequence. An example of homologous gene is Orthologous gene, which is said to have be brought about by speciation.
They interact with light to absorb only certain wavelengths, pigments are useful to plants and other Autotrophs, organisms which makes their own food using photosynthesis. in plants,algae,and Cyanobacteria, pigments are the means by which energy of sunlight is captured by photosynthesis.