The answer is <span>B. A smaller cell has more surface area than volume.
</span>This is simple mathematics. Let's imagine that cell is spherical.
Now, we have two spheres: one big (with radius r = 5 cm) and one small (with radius r = 2 cm).
The formula for the surface area of the sphere (A) is A = 4 π r².
The formula for the volume of the square is 4/3 π r³.
Now, let's compare two spheres:
Small sphere: Big sphere:
r = 2 cm r = 5 cm
A = 4 π 2² = 50.3 cm² A = 4 π 5² = 314.2 cm²<span>
V = 4/3 </span>π 2³ = 33.5 cm³ V = 4/3 π 5 ³ = <span>523.6 cm³
According to the calculation, the smaller sphere will have more surface area than volume. This can be extrapolated to all shapes, not only spheres, so the </span><span>smaller cell has more surface area than volume.</span>
Answer:
d) II, III, IV, V, Rx, OTC
Explanation:
Based on its potential lethality, harm, addiction potential etc. drugs can be divided into five groups (drug schedule). Schedule I drugs are most restrictive and are not used in treatment and have extremely high addiction potential (heroin, for example). They are illegal substances and are not used in medical treatment. Going down to schedule V drugs are becoming less and less harmful and restricted with less potential for abuse.
Rx drugs are the ones that require a prescription in order to be purchased in the pharmacy.
OTC drugs are, so-called "over the counter" drugs, which can be purchased without prescription, making them the least restrictive.
So, the correct streak, from most to least restrictive drug, is:
II -> III -> IV -> V -> Rx -> OTC
Hey there! :)
Natural resources include:
- Nutrients, which come from vegetables
- Trees, which provide lumber
- Minerals, which van be used to make plastic and metal
<span>Can the pollution created by natural resources be reduced?
Yes, they can, using alternative resources,such as sun and wind.
Hope this helps :)</span>
