Answer:
The correct answer is: C) sodium, calcium, potassium, and chloride.
Explanation:
Minerals are of key importance for our bodies to function properly, which is why a balanced diet is always suggested for us to be healthy. The minerals that aid transmission of nerve impulses and provide for optimal muscle contraction are sodium, calcium, potassium, and chloride (coincidentally, all of these essential minerals can be found in milk; other sources include: meats, vegetables, fruits and legumes).
<u>Answer</u>: Bacteria through the nucleoid (number 5).
<u>Explanation</u>:
Both paramecium and bacteria are single celled organisms. However, they differ by the fact that the first one is an eukaryote and the second one a prokaryote.
Furthermore, they differ in their capacity to mutate and adapt to environmental changes. Bacteria have a simple internal structure that lacks any organelles and are very adept at adapting to environmental changes. Besides their capacity for high mutation rates, they are also capable of picking up genetic information from their environment through a process called <em>transformation</em>.
Through transofrmation, environmental DNA enter the living bacteria through its cell membrane. Double stranded DNA will have one strand dissolved through hydrolysis, whereas the second strand may recombine with the bacterial <em>chromosome (nucleoid)</em>. Thus, this new genetic material will become incorporated into the bacterium's genome.
After a 48-hour incubation, the 35S would most likely be found in the S. cerevisiae's proteins.
35S is the isotope of sulfur with the half-life of 87.6 days. It is often used isotope because it is low energy β emitter and even large amounts of 35S pose no external dose hazard to exposed organism. 35S is used for the examination of protein synthesis in the Saccharomyces cerevisiae cell cycle.
Low rainfall would be the answer.