B. epidemiology.
C and D ,while is a part of science, doesn't deal with that specific kind of science. A is a science that has to deal with how organisms interact with each other.
Answer:
Plant cells have a cell wall and chloroplasts and the cell wall gives the cell a rectangular shape unlike animal cells which have a round shape because we only have a cell membrane.
Answer:
are you talking about for a person or an animal?
For walking, a group of four muscles, known as Quadriceps muscles are the most important. A complete bed rest for a longer period of time causes the reduction in the flexibility of the quadriceps. So, in order to prepare a person for ambulating after a long bed rest, the nurse should focus to restore the flexibility in the quadriceps. This can be done by alternating flexing and relaxing the quadriceps. This exercise would help in reviving the strength of the quadriceps.
Sulforhodamine B (SRB) cell cytotoxicity assay has been widely used for drug toxicity screening and cell proliferation detection.
https://www.creative-bioarray.com/sulforhodamine-b-srb-cell-cytotoxicity-assay.htm
