x or y because both can cause it
Environmental scientists study the interactions of living and non-living
components in the environment. Environmental science integrates
physical and biological science to allow for better understanding of
environmental systems and to find solutions to environmental problems.
Hope this helps : )
There are two groups of bases: Pyrimidines: Cytosine and Thymine each have a single six-member ring.
These cells are<span> always on </span>alert<span> for germs, patrolling </span>your body<span> like soldiers looking for invaders. specific group of cells called the adaptive </span>immune system<span> cells. These innate cells then communicate to the </span>rest<span> of </span>your body<span> regarding the problem by activating the inflammatory reponse.</span>
Viruses are not alive. Although they sort of “hack” a host’s cells and reproduce, they do not breathe or move on their own. A virus will sit on a counter forever if it’s untouched. Viruses are spread by physical contact, not because they can move around on their own.
Although viruses can attack and hack, and use your cells to reproduce, they are programmed to do so.
Cells are very much alive, while viruses are not.
