Answer:
D
Explanation:
A multi-subunit protein is a good example of a quaternary-structure protein. A quaternary structure protein is often defined as a unit composed of different polypeptide sequences or chains (often called subunits). The most common interactions observed in these conformations are chemical interaction between the “R” groups in the amino acids that composed the proteins. These interactions are mostly weak interactions (such as London dispersion forces and hydrogen bonds). Therefore, option D is correct.
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The goal of classification is to accurately predict the target class for each case in the data.
Explanation:
For example, a classification model could be used to identify loan applicants as low, medium, or high credit risks.
The question is incomplete. The complete question is:
Question: Impulses originating in the part of the brain called the medulla would most directly affect which body structure?
a. A leg muscle
b. A ligament
c. An arm bone
d. The heart
Answer:
d. The heart
Explanation:
The medulla oblongata contains a number of reflex centers for regulating vital body functions such as heartbeat, breathing, and vasoconstriction. The medulla contains several nuclei, a collection of neuronal cell bodies.
For example, impulses originated in the cardiovascular center regulates the rate and force of the heartbeat and the diameter of blood vessels. Impulses from the cardiovascular center flow along sympathetic and parasympathetic neurons. An increase in sympathetic stimulation from the cardiovascular center of medulla increases heart rate and contractility while a decrease in sympathetic stimulation decreases heart rate and contractility.
Answer:
The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
Explanation: i hope this helped
