Researchers have discovered that the value of r in aphids depends on the average temperature where the population lives, suggesting that climate change could affect population growth in aphids. Interpret the model.
[Line graph with 2 lines. The x-axis represents time in days and is labeled 0 through 150 in increments of 30. The y-axis represents population size and is labeled 0 through 200 in increments of 50. Line r sub 1 curves gradually upward and then steeply upward. At 0 days the population is 10, at 30 days the population is 20, at 60 days the population is 50, at 90 days the population is 115, at 110 days the population is 200. Line r sub 2 curves gradually upward and then steeply upward. At 0 days the population is 10, at 30 days the population is 15, at 60 days the population is 30, at 90 days the population is 60, at 120 days the population is 110, at 150 days the population is 200.]
Drag "True" or "False" to the end of each statement.
1, The value of r increases over time in both cases. --------------
2, The slope of the lines at 90 days is determined by rN in both cases.---------------
3, Both curves show exponential growth. ----------------
4, If r2 = 0.02, then r1 > 0.02. -------------------
5, Ninety days after the introduction of 10 aphids, there would be more aphids in the population with r1than in the population with r2.---------------------
Q32, E
Interpret the model of population growth in a population of dandelions.
[Line graph. The x-axis represents time in months and is labeled 0 through 4 in increments of 1. The y-axis represents population size and is labeled 0 through 200 in increments of 50. The line curves gradually upward and then steeply upward. At 0 months the population is 5, at 1 month the population is 15, at 2 months the population is 60, at 3 months the population is 150, at 3.3 months the population is 200.]
Drag "True" or "False" to the end of each statement.
1, More dandelions are reproducing after three months than after one month.--------------
2, The value of r is higher after three months than after one month.-----------
3, Each dandelion is producing more seeds after three months than after one month.----------------
4 Population growth is exponential ------------------.
5, The slope of the curve is steeper after three months than after one month.----------------------
6, You can infer from this curve that the sunlight, nutrients, water, and space available to the dandelions are plentiful (that is, are not limiting population growth). ---------------------------