Helpful bacteria found in the gut are <u>not pathogens</u>.
Explanation:
An organism is said to be pathogenic if it can invade, grow and multiply in an individual host’s body and cause disease in the susceptible host’s body by evading the immune system of the host.
Viruses belong to obligate pathogen because they require the cellular machinery of the host’s body to grow and replicate and thereby will cause disease in the host.
Disease-causing bacteria are pathogenic like Salmonella, C. difficile, etc.
Helpful bacteria of the gut also called the human gastroinstestinal or gut microbiota, or the gut flora are those bacteria living in the digestive system of the body and improve the gut health. Gut bacteria like Lactobacillus generally help by:
- Forms a central line of resistance or barrier and prevents exogenous bacterial colonization and protects the intestinal mucosa from other pathogens
- Help in fermentation of undigested or nondigestible food or carbohydrates like large polysaccharides of cellulose, pectin etc.
- Gut bacteria belonging to the commensal bacteria help by digesting the available unused nutrients in the body
- Gut bacteria help in the synthesis of certain vitamins
Petroleum is not a source of coal or coal-precursor.
Answer:
Technology uses science to solve problems, and science uses technology to make new discoveries. Although they have very different outcomes, science and technology are able to work hand in hand, and each helps the other advance.
A fully functioning enzyme molecule is fold into a complex
three-dimensional shape and this structure determines the specific type of
molecules it interacts with during a reaction. Each functioning enzyme molecule
has a particular structure to bind <span>with a high degree of specificity to one or a few molecules
and to carry out its function. Therefore, cellular function is directly
associated to its structures.</span>
The best answer would have to be
B.) The volume, density, and salinity of the ocean water
