True. A protein becomes functional only when it reaches its tertiary shape (3D). It is not necessary for the protein to reach the quaternary stage, but that is just a more complex functioning protein. It really is just two tertiary merged together. Example is red blood cells.
In ancient times, people classified plants and animals by use. Like for plants they are being classified as beneficial or harmful. While for animals, they are classified as domestic animals, wild animals, creeping animals, flying animals, and sea animals.
B. its false it's the other way around gametes are produced by gametangia :)
The best thing to visualize using a diagram in this case would be the last answer - the average number of clams dredged up at different depth ranges.
The reason for this is because on th X-axis of our histogram, we can use different ranges (5-10, 10-15 ...) and the Y-axis would represent the frequency or average number of clams that are being dredged up.
