Grossmont College Unregulated Growth Biology Questions

1 Given this scenario, the population will be engaged in unregulated growth [scenario will include population size a different times, dN/dt vs N or r vs N at different population sizes.]

true/false

2 Given this scenario, the two populations will be engaged in [scenario will include growth rates with and without other species, N vs N or r vs N]

a) competition

b) predation

c) cooperation

d) populations are not interacting

3 Which of these changes will lead to an increase/decrease in carrying capacity? [answers vary]

4 Which of these changes will increase/decrease competition? [answers vary]

Question 1
Which of these changes will decrease competition?
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When food supply is unlimited
When both species eat the same foods
When neither species has local predators
When both species are closely relatedQuestion 2
2 points Save Answe
In my flower bed, I have at least 4 species of mollusks: a slug (species 1) and three snails (species 2-4). The snails are as follows: (species 2) small,
blue bodied, shell axis not elongated, (species 3) large, grey bodied, shell axis moderately elongated, and (species 4) medium, grey bodied, shell
axis extremely elongated. Most terrestrial mollusks are hermaphrodites and can live 1-3 years. Using barriers and removals, two species interactions
were monitored for 2 years starting in April.
In one trial, species 1 and species 3 were grown together. When the growth rate of species 1 at 4 different population sizes of species 2, the trend
positive. When the growth rate of species 2 at 4 different population sizes of species 1, the trend was positive.
was
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0
competition
predation
cooperation
populations are not interactingQuestion 4
Which of these changes will lead to an increase in carrying capacity?
Decreasing competition for food
Increasing starting population size
Decreasing the energy obtained from food by decreasing digestive efficiency
Decreasing food supply
ооо о2 points
A farmer plants soybeans at four densities 10/m², 20/m², 40/m², and 80/m². The yield (dN/dt) of soybeans in kilogram per square meter is
determined at harvest. The farmer finds the following yields:
a density of 10/m² yields 50kg, 20/m² yields 100kg, 40/m² yields 200kg, and 80/m² yields 400kg.
Given this scenario, the population will be engaged in unregulated growth?
True
False
Question 3
Save