The correct answer is option C, that is, viruses.
An infection occurs when a foreign species moves inside the body of an individual and causes harm. The species utilizes the body of that person to reproduce, sustain itself, and colonize. These infectious species are called pathogens. The examples of pathogens are viruses, bacteria, prions, and fungi.
Of the given options, viruses are the smallest infectious agent. The viruses are basic particles, which must infect a host cell to reproduce and develop. Viruses utilize the host cells metabolic machinery to double themselves.
Answer:
Category D drugs
Explanation:
There are five categories of drugs, they include: categories A, B, C, D and X. Research shows that category D drugs have possible fetal risks, however, the potential benefits on the mothers still outweighs the risk. An example of a category D drug is Losartan.
Category A drugs have no evidence of risk on fetus, an example is folic acid.
Category B drugs also show no adequate evidence of risk on the fetus. An example is metformin.
Evidences shows Category X drugs have an adverse effect on the fetus, hence the risk outweighs the potential effect. An example is Methotrexate.
For some animals<span>, </span>the reason<span> for such protective behavior </span>is<span> to acquire and </span>protect<span> food sources, nesting sites, mating areas, or to attract a mate.</span>
The black coffee, with a pH of 5 has a hydrogen ion concentration of 1 x 10^-5 mol/L. The tomato juice, with a pH of 4, has a hydrogen ion concentration of 1 x 10^-4 mol/L.
By taking the difference between the two respective concentrations, we can compute how much greater the concentration of hydrogen ions in the tomato juice is compared to the coffee.
Difference = (1 x 10^-4 mol/L) - (1 x 10^-5 mol/L)
Difference = 9 x 10^-5 mol/L
Thus, the tomato juice has a concentration of hydrogen ions that is 0.00009 mol/L greater than the the concentration of hydrogen ions in the black coffee.
