Question

biologists observed the growth of a population of euglena over five days. the biologists recorded data about the size of the euglena population in the following table.
day number of cells
1 1
2 2
3 4
4 8
5 16
use the data above to answer the following two multiple - choice questions.
which of the following best describes the euglena populations growth over the five - day period?
choose 1 answer:
a the number of euglena increased steadily from day 1 to day 5.
b the number of euglena initially increased from day 1 to day 4 and then stabilized.

Explanation:

The number of Euglena cells on Day 1 is 1, Day 2 is 2, Day 3 is 4, Day 4 is 8 and Day 5 is 16. The increase is not a steady linear increase (e.g. adding the same number each day), but rather a growth where the number of cells doubles each day. There is no indication of stabilization.

Answer:

A. The number of Euglena increased steadily from Day 1 to Day 5.