Facilitated diffusion of substances crossing the cell (plasma) membrane takes place with the help of proteins such as channel proteins and carrier proteins.
The question is not complete here, however, the complete question as follows:
consider the relationship among the following terms. book letter chapter word page sentence Create a ranking system for the terms from one to six. The first one has been completed for you. Rank the remaining terms as two through six.
Answer:
1) letter 2) Word 3) Sentence 4) Page 5) Chapter 6) Book
Explanation:
All the given keywords or terms are from the book which includes various elements that make a book as a whole. A ranking system requires creation from the given related words or terms. The ranking system included the least inclusive part to the most inclusive part in
Letters are the smallest part of any reading material. Letters form words by joining together and several words form a sentence that makes up the page of the book and several pages combinedly form chapters. Lastly, series of chapters makes a completed written material called BOOK.
I believe the correct answer is: HIV is spread during unprotected sex or through contact with infected blood; it cannot be cured, but early treatment can minimize the long-term consequences.
<h2>Explanation:</h2>
Human Immunodeficiency Virus is a type of virus which causes an impairment of the immune system of the person making them susceptible to diseases such as tuberculosis, influenza and any other disease that can exploit this opportunity. It is spread by a person coming into direct contact with infected bodily fluids such as saliva during deep kissing, semen during intercourse, blood after an accident or even fluids when sharing needles and syringes for drug addicts. There is no cure but the current form of treatment slows down the virus to prevent some consequences.
<h2>Further Explanation:</h2>
The virus is enters the body through open wounds or surfaces such as the vagina or mouth where the skin is very thin and can tear. After penetrating the skin, it attaches to specific immune cells called CD8+ T-cells on points called receptors. It then enters the cell and replicates itself in the nucleus of the cell and as it goes out, it kills these immune cells making the person to have a weak immune system. The current drugs used called AntiRetroVirals (ARVs) such as the drug Zidovudin stops the virus from replicating thus reducing the total amount of virus in the body called the Viral Load. Some drugs target enzymes called proteases and reverse transcriptase that help the virus to replicate. This viral load is what is counted to estimate the total volume of HIV someone has in their body. Infected persons should use protection while having sex and also avoid sharing sharp objects to prevent transmission. They also need to take their medication to make them much more healthier in addition to taking proper balanced diets.
Level: High School
Subject: Biology
Topic: The Immune System
Answer:
Decompose
Explanation:
If the material decomposes the stored energy will be released.
It loses alot of soil minerals as a result of no availability of green plants
