Answer:
If water were a nonpolar molecule how would its properties be different A. Water would be able to climb inside plants. ... Water would no be able to form hydrogen bonds.
Answer: from an easily identified and confined place.
4. Give examples of point source pollution. The classic image of a factory smokestack belching smoke and fumes into the air or an industrial discharge pipe pouring contaminated liquid into a river are some great examples of point source releases to the environment.
5. What is non-point source pollution? Non-point source (NPS) pollution is pollution resulting from many diffuse sources, in direct contrast to point source pollution which results from a single source.
Explanation:
Answer:
Transcription is the process through which DNA is copied into mRNA
Explanation:
The transcription is the process that copies the DNA in to mRNA. It is also referred as the initial step in the dual step process for protein synthesis, which happens inside the nucleus of the cell. After transcription, the translation step happens. In this step i.e. transcription, the genetic materials are transferred to the mRNA. mRNA strand made is exactly similar to that of strand of DNA in transcription as the DNA requires a base strand for sequence.
Answer:
a. Calcium is an electrolyte that assists in the transmission of nerve impulses.
Explanation:
In the process of muscle contraction, the action potential (electrical impulse) releases the calcium stored in the sarcoplasmic reticulum located in the muscle.
Calcium then flows into the cytoplasm, where the actin and myosin filaments are located, which will interact with each other to promote muscle contraction.
Thus, it can be concluded that calcium does play an important role in nerve impulse transmission.
Given the above statements, it is concluded that the correct alternative is "A"
.
As for the other statements: Calcium, as described above, also participates in the process of muscle contraction, however it is the muscle cells that contract, not the nerve cells (Statement B).
In addition, calcium does not participate in the formation of muscle cells (Statement C), nor can it make the blood slightly acidic (Statement D) because it has alkaline (basic) character.
