Answer:
a solution of each sodium salt at the same concentration
Explanation:
If a scientist wishes to study the electrical potential that develops between ice and the sodium salts solution of the ions (F-, Cl-, Br-, or I-) in order to determine which ion produced the greatest electrical potential; he must compare the electrical potential that develops between ice and a solution of each sodium salt at the same concentration.
This means that conclusions can not be reached unless the sodium salt of each ion at the same concentration is compared so as to ensure consistence in the results of the study.
When an action potential does arrive at the terminal, the neurotransmitter must be quickly and efficiently released from the terminal<span> and into the synaptic cleft. The neurotransmitter must then be recognized by </span>selective receptors on the postsynaptic cell<span> so that it can pass along the signal and initiate another action potential.</span>
Answer:
The true statement is <em>Hydrophobic side chains are usually in the interior of the native structure</em>.
Explanation:
In the native structure of a protein, the hydrophobic side chains of aminoacids- such as leucine (Leu), alanine (Ala), methionine (Met), and others-are located in the interior of the structure. They are buried inside the structure, whereas polar side chains are exposed to the outside in the structure, and they interact with water molecules.
Regarding the other statements, entropy-as a measure of disorder of a system-is very important in protein stability as we know that native conformations are more ordered systems, with lower entropy and higher stability. Aminoacids in the protein structure interact each other through Van der Waals interactions and hydrogen bonds.
Answer:
A) presence of a closed circulatory system
Explanation:
During photosynthesis, with the aid of light energy, plants produce food from carbon dioxide and water. The energy produced by the plants is first consumed by the plants to do the process and then consumed by the primary consumers to the secondary, third, until to the decomposers. There is an energy loss in the food chain as energy is used by the consumers for activities before they are consumed by another organisms
