Nucleic acids also typically contain phosphorous, and nitrogen plays an important structural role in nucleic and proteins. The proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium.
Answer:
<em>The above statement is true.</em>
Explanation:
There are certain ethics which have to be followed during the scientific method of research. If these ethics are not followed, the scientific researches can be dangerous or not considered to be applicable.
One such ethic of scientific research is that when taking a biological sample from a research subject, the research subject should be properly guided about how the biological sample will be used for the research project. The research subject should be given knowledge about how the data obtained will be a part of the research object.
Answer:
A
Explanation:
Gram positive bacteria stain violet due to the presence of a thick layer of peptidoglycan in their cell walls, which retains the crystal violet these cells are stained with.
Part A: Water molecules are polar, meaning that they are neutrally charged overall, but with partial positive charges on the H atoms and a partial negative charge on the O atom. Thus, polar molecules like the salt, are like the water, neutrally charged and its ions interact with both the partially positive and partially negative parts of the H2O molecules.
Part B: In a dissolution of salt in water, the solvent is the water and solute is the salt. Solvent is a substance that allows the dispersion of another substance in itself, like the water in this solution. A solute is a substance that can be dissolved, dispersed in a solvent.