Question

which graph is the best model of how the cell population will grow over time given the limited supply of food and space? circle the letter for the graph you choose.
a.
graph a: number of cells vs time (hours), horizontal line then steep drop to zero
b.
graph b: number of cells vs time (hours), triangle - shaped, increase then decrease
c.
graph c: number of cells vs time (hours), s - shaped curve, increase then level off
d.
graph d: number of cells vs time (hours), wavy line with increasing amplitude
1b. redraw a larger copy of the graph you selected and annotate it (you may choose to use the i² strategy if it helps) to communicate what is happening to the cells over time. be sure to indicate what is happening at least two different times.

• reminder: the i² strategy involves writing “what i see/what it means” statements.

Explanation:

Step1: Analyze Cell Growth Pattern

Cell growth with limited resources follows a logistic (S - shaped) curve. Initially, growth is slow (lag phase), then rapid (exponential phase) as resources are available, and finally slows/stops (stationary phase) when resources are limited.

Step2: Evaluate Each Graph

• Graph A: Shows a constant then sharp decline, not matching logistic growth.
• Graph B: Triangular shape (rise then fall) doesn't fit limited - resource growth (cells don't typically decline after growth with just limited resources initially).
• Graph C: Has an S - shaped curve, matching the logistic growth: slow start, rapid growth, then leveling off as resources (food/space) become limited.
• Graph D: Shows oscillating growth, which isn't typical for cell growth with limited resources (no regular cycles without external factors not mentioned here).

Answer:

C