It would be an absence of a chemical in a chromosome or DNA strand
<span>People who are infected with
AIDS has more tendency to acquire multiple infections because the pathogen that
causes acquired immunodeficiency
syndrome (AIDS) damages the immune system of a patient by destroying the white
blood cells that fight infection. If the CD4</span>+ T cell count below 200 cells per µL and presence of
specific diseases in association with an HIV infection are observe in an
individual, then this could be an indication of having an AIDS.
Moreover, opportunistic
infections or cancer may take advantage of a very weak immune system, an
individual can develop an influenza-like illness with signs and symptoms that
includes swollen lymph nodes, fever, rash, weight loss, diarrhea and cough.
Answer:
Both physical and chemical weathering, along with erosion, can change Earth's surface as physical weathering allows breakdown of rock into smaller pieces, these pieces can be move from one place to another through water, wind or ice (erosion), and when the smaller pieces will settle down at a place, rain water can react with the soil or smaller rock pieces to form rock minerals.
For example: Running water, wind, and rapid heating/cooling allows the rocks to break down into smaller pieces or grains (physical weathering), then the small grains are transported and settled away from the source area through wind or river (erosion), and at the end the surface area exposed to air for chemical weathering.
<h2><em>what is an atomic mass of an atom referring to?</em></h2>
- <em>Lr. The atomic mass of an element is the average mass of t<u>he atoms of an element measured in atomic mass unit </u>(amu, also known as daltons, D). The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope.</em>
<em>hope</em><em> it</em><em> helps</em>
<em>#</em><em>c</em><em>a</em><em>r</em><em>r</em><em>y</em><em> </em><em>on</em><em> learning</em>
Natural selection affects or changes a population and not only an individual organism because as there are somethings to be changed in a certain organism to adapt to the changes in the environment, all organisms in a certain species will be able to adapt and the changes therefore is collective.
