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WorksheetsPopulations 5.2
Total questions: 12
Worksheet time: 6mins
Any circumstance that decreases the growth or size of a population is known as ______________.
a growth factor
the carrying capacity
a limiting factor
the growth rate.
In the Paramecia lab that we conducted, we studied the effect of competition on two different species. Which type of limiting factor is competition classified as?
density independent (abiotic)
density dependent (biotic)
logistic
carrying capacity
Water lilies do not grow in desert sand because water availability to these plants in a desert is a
competition factor
logistic growth curve
carrying capacity
limiting factor
Study the graph provided. What is the most likely cause of the decrease in the moose population immediately after 1995?
Poisonous plants killed off many moose.
Many moose reached old age and died.
Overcrowding caused competition in the moose population.
A decrease in predators caused competition in the moose population.
Each of the following is a density-dependent (biotic) limiting factor EXCEPT...
competition
temperature
parasitism
disease
Which of the following would be least likely to be affected by a density-dependent limiting factor?
a population with a high birth rate
a small, scattered population
a large, dense population
a population with a high immigration rate
Which of the following is a density-independent limiting factor?
competition for food
predator/prey relationships
the eruption of a volcano
parasitism and disease
What is the approximate carrying capacity of the deer population on Walla Walla Island?
100
60
80
15
During our virtual study of two paramecia, what limiting factor was the result of the data shown in this population growth graph?
parasitism
disease
competition
predation
In the lab setup shown, what was the manipulated variable in our Paramecia study?
P. caudatum grown alone
P. aurelia grown alone
Two paramecia grown together
Adding rice to each test tube
What is the approximate carrying capacity of P. aurelia when grown in a mixed population.
200
180
140
40
Which species of paramecia outcompeted the other in our population study?
P. caudatum
P. diddy
P. circle
P. aurelia
