Semi permeable membrane will allow something to pass through them and something not and it will allow on the basis of size particles
while differentialy permeable will include other factors also other than size and will depend on the need of the cell
this is the main difference between them
hope it helps<span />
Viruses are much smaller then cells, viruses have genetic material DNA or RNA and cells also have genetic material
The correct answer is B.
The electrons deal with most of the spectrum emissions. Whilst mass is technically a factor, the more precise answer would be B.
Answer: RadioImmunoassay
Explanation:
RadioImmunoassay is a technique used in the measurement and comparison of hormones. It helps to identify difference in the hormone concentration of various species. It makes use of Anti-bodies directed against the hormones and the radio-labelled forms of hormones. A standard curve that contains a known amount of hormone is then use to compare and calculate measurements of the new hormones.