<span>Natural selection is not a big part of research.
That said, it is a badly worded question. So I'm not 100% sure. Natural selection definitely does happen in the lab under certain specific cases. I could make a case for each one of them happening under specific cases in the lab - but natural selection is the least common and least likely.</span>
Answer:
For calculating the surface to volume ratio for a spherical cell,
Surface area (S) = 4πr²
Volume (V) = 4πr³ / 3
Ratio = S / V = 4πr² / 4πr³ / 3 = 3 × 4πr² / 4πr³
= 3/r
1. 15 micrometer diameter = Ratio = 3/7.5 = 0.4
2. 2 micrometer diameter = Ratio = 3/1 = 3
The cells exhibiting high surface to volume ratio shows enhanced metabolic activity. Shows easy uptake of oxygen, nutrients, water, and also the excretion of waste as they possess large surface.
Planned Parenthood v. Casey. Planned Parenthood of Southeastern Pennsylvania, et al. v. Robert P. Casey, et al. A Pennsylvania law that required spousal awareness prior to obtaining an abortion was invalid under the Fourteenth Amendment because it created an undue burden on married women seeking an abortion.
