Answer:
This really easy taking antibiotics too often or for the wrong reasons can change bacteria so much that antibiotics don't work against them. This is called bacterial resistance or antibiotic resistance. Some bacteria are now resistant to even the most powerful antibiotics :D hope it helps
Explanation:
Here are the answer for each item.
1. With each cell division, chromosomes gradually shorten in the absence of telomerase activity (FALSE)2. During embryonic and childhood development in humans, telomerase activity is relatively low compared to the level of activity in most somatic cells of an adult. (FALSE)
3. <span>Cells that divide frequently tend to have relatively low levels of telomerase.(FALSE).
</span><span>4. The activity of telomerase in most mature somatic cells is kept high by increasing the expression of the gene encoding this enzyme. (FALSE)
5. Mice with low telomerase activity appear to be normal for up to six generations, but they show steadily decreasing telomere length that eventually leads to nonviable offspring. (FALSE)
6. When telomerase is added to cells grown in culture, their lifespan decreases relative to controls that have no telomerase added. (FALSE)
7. Cancer cells generally have high levels of telomerase activity, which allows them to divide indefinitely without the chromosomes getting shorter and shorter. (TRUE).</span>
A figure 8 shape is how the blood goes throught the body
Answer:
Oxygen is moved around the body of an echinoderm in its C. water vascular system.
His WBC (White blood cells) and antibodies would be higher than normal. This is because the rhinovirus, which is a pathogen, has induced the subject’s immune system and is trying to fight the infection. Immune cells such as T- and B- cells, and macrophages would be numerous in number compared to those of an uninfected person.