A placebo is kind of a "fake" treatment but, typically the person receiving a placebo is unaware it has no medical effect on them so they believe they are feeling better. For example, a lot of anxiety meds are placebos and people don't know so their brain tricks them into thinking they are feeling less anxious. This could be used in experiments where a group believes they are affected to see how they react
Answer;
The Galápagos Islands
Explanation;
-Darwin's visit to the Galapagos Islands, helped him discover several species of finches that varied from island to island, which helped him to develop his theory of natural selection. They also helped investigate evolutionary changes in Darwin's finches.
Answer:
flax is a stem fiber that is used to make linen. a smooth shiny fabric made from flax
Answer:
The correct option is A. The cell is sitting in a hypertonic solution.
Explanation:
A hypertonic solution is a solution in which there are more number of solutes present in the solution than inside the cell. The solutes then tend to pass into the cell through diffusion from the solution.
As it can be seen in the diagram, the concentration of salt is more in the solution i.e 40%. Hence, the salt from the solution enters into the cell by diffusion and has a concentration of 10% inside the cell which shows the cell to be placed in a hypertonic environment.
