Feathers are modified as scales. According to the history, birds which have feathers are the descendants of the dinosaurs which have scales.
That's why feathers are categorized as scales in the present record according to studies. <span />
Answer: Lipids.
Explanation:
The large carbon -hydrogen bonds(C-H) in chains of lipids makes them ideal storage of energy.
T<u>he more C-H bonds breakage, the higher protons availability from Citric acid cycle NADH and FADH2 and hydrogen atom splitting (to protons and electrons) for the electron transport chains (ETC</u>), and therefore the higher proton pumps for more ATP's synthesis in the mitochondria matrix.
In addition large number of electrons surrounding carbon atom in fatty acids than other food molecule is added factor. The transfer of these electrons to oxygen during oxidation of fatty acids releases large amount of energy (9 kilo calorie) into the cells, more than other food substances
The answer to this question would be: <span>proceed through the trachea, bronchi, and then bronchioles.
After going pass the oropharynx the air will be going to trachea, </span>bronchi, bronchioles and will end in the alveolus. In alveolus, the oxygen from the air will diffuse to the blood while carbon dioxide will diffuse to the alveolus. The carbon dioxide is going out of the lungs when doing expiration.
Proteins that are functionally less important for the survival of an organism generally evolve faster than more important proteins.
Proteins serve as the building blocks for all of life's essential processes. The proteins evolve along with the genes that create them, adding new functionality or features that may potentially result in the development of new species.
The mutation of amino acid-coding nucleotides and the stabilization of novel variations in the population are the two phases required for protein evolution.
The stability of a protein's folded structure, how well it prevents aggregation, and how well it is chaperoned all affect how quickly it evolves. According to the studies, the degree of a protein's expression has a greater influence on its evolutionary rate than does the protein's functional significance.
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