All living things, including cells, reproduce. Under the right conditions, the number of
yeast cells in a population can double every 20 seconds. Like all organisms, yeast
must also compete for available resources. The graph shows how a population of
yeasts changed over time. The yeast were grown in a glass jar that contained a warm
sugar water solution. Which of the following best explains why the population of yeast
cells began to rapidly decrease after 40 minute?
The yeasts became infected
and began to die.
As the yeast population
Increased, their food source
decreased.
The water was too warm for
the yeasts causing them to
die.
As the yeasts became older,
they just stopped reproducing
