The answer is <span>B. immune cells that are destroyed by HIV
CD4+ are immune cells (white blood cells) and are an important part of the immune system. Their name comes from the presence of CD4 glycoprotein on their surface. HIV uses CD4 glycoproteins on the surface of CD4+ cells to entry into the cells. The consequence is a reduced number of those cells. Therefore, CD4+ immune cells are destroyed by HIV.</span>
Answer: Acid rain
The volcanic eruption is a natural phenomena that results in the liberation of the lava from the heap of the earth along with the gases. The volcanic eruption causes major damages to the vegetation lying above the erupted crater of the volcano. This results in the immense release of gases such as carbon dioxide, carbon monoxide, sulfur dioxide, hydrogen chloride, hydrogen fluoride, methane and ammonia all these gases are major pollutants of the air. These gases reacts with water vapor in the atmosphere and condense in the form of acid rain.
Answer:
Genetics is a branch of science that deals with the study of genes, their sequence, function, variation, and heredity.
Increasing understanding of genetics help in making new fields of health care, for example,
- Gene therapy helps in treating various genetic diseases such as cystic fibrosis et cetera.
- Molecular genetics help in the development of more precise methods for diagnosis such as ELISA.
- Pedigree analysis and karyotypes help in early detection of possible hereditary diseases.
- DNA fingerprinting helps in detecting criminal suspects, paternity test, identification of dead organism et cetera.
Dear Sarah.
Firstly, I am very happy to know that you have decided to start a study schedule for your literature course in Colonial Latin America, I believe that you will gain great knowledge and that this will be very important for your academic career.
Because of the importance of this study, I decided to analyze your study methods and I fear that they are not efficient and that you will lose time and do not absorb the concepts really necessary for you.
Your study method is based on memorizing concepts and quotes and I believe that you should not rely on it to study, as our memory is relative and often does not last as long as necessary. So I decided to give you advice that I used during my study and that were extremely efficient.
My first advice is that you divide all the material that you have to study in small modules and establish an expert for the study of each one. Don't forget to put a rest time so that you don't get overwhelmed and start taking your readings automatically.
My second advice is that when you study each module, write summaries with the main parts and make mind maps that will be extremely necessary to make revisions.
My last and most important advice is that you make constant reviews and try to conceptualize and reason during this process, this will prevent you from memorizing, but introducing the concepts in your mind in order to understand them and not record them.
I am grateful that you will be successful if you follow these steps and I expect answers from you telling me the results.
Affectionately,
Caroline.
When the effects of genes add up to make the phenotype, they are called additive genes.
