I remember the secondary structure by visualizing it. Understand that primary structure is just the order of the amino acids. The tertiary structure is the 3dimensional configuration of the whole protein molecule with multiple interactions guiding its fold (disulfide bonds, ionic interactions, hydrogen bonds, van der walls). Secondary structure is a step towards the conformation of the protein where it is made up of either alpha-helices or beta-pleated sheets. The alpha helices look like a spiraling staircase while the beta-pleated sheets look like a repetition of long loops. These two structures hold itself by hydrogen bonds.
Answer:
None of the Above.
Explanation:
The correct answer is fitness. The Theory of Evolution defines fitness as a result of the adaptations an organism has which increase its chance of survival.
The answer is true. it says I need more characters. true
Answer:c. Respiratory
Explanation:
The reason why it’s respiratory is because in the question it says helps “control expanding the Lungs”= respiratory
Answer:
Archaic Homo sapiens
Explanation:
The evolution of modern species is studied through the fossils found in various parts of the world.
The <em>Homo erectus </em>is the first hominin species which possessed human-like characteristics like bipedalism and they appeared about 2 mya. The first evidence of <em>Homo sapiens</em> fossil belonged to about 1,60000 years ago.
In between them, scientists found some fossils which possess characteristics of both Homo erectus and Homo sapiens, therefore, these fossils were called archaic Homo sapiens. These fossils dated about 300000 years ago.
Thus, Archaic Homo sapiens is correct.
