Question

The data in the graph are the result of a paramecium being placed in a hypertonic salt solution. mc025-1.jpg

What change would most improve the usefulness of the graph?

A) Replace the concentration descriptions with actual values.

B) Plot contractions per second instead of contractions per minute.

C) Remove the plotted points and just keep the line.

D) Remove the name of the organism from the title.

mc025-1.jpg = https://gyazo.com/d6baf078431a7576d0168cf2395d7c49

Answer 1

The correct answer is A.
Replace the concentration description with actual values. Paramecia that lives in salt water they have the hypertonic environment to mean that the cell has a need for water. Therefore, the contractile vacuole can release more water into the cell.
Paramecia that lives in freshwater they live in the hypotonic environment and it calls for contractile vacuole which helps to pump out the excess water.

Answer 2

A is the correct answer on e2020