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Bio- Lessons 152, 154, and 156
Terms in this set (20)
Population, community and ecosystem ecology are all different ways that population sizes can be studied. Which of these is the most specific?
Which best describes population density?
the number of one specific species in a geographic area that come into contact with each other
Which of the following affects population density?
number of deaths, immigration, number of births (all of the above)
Limiting Factors can be described as factors that...
keep population growth in check
Which of the following are potential limiting factors for a population? (choose all that apply)
weather, space, finding mates, food (all of the above)
The number of individuals a habitat can sustain with the resources that it has available...
What is an example of a density Independent factor affecting a population?
natural disaster (hurricane, volcanic eruption etc)
What information do you need to calculate population growth?
population size, number of deaths, number of births (all of the above)
A group of the same species living together is a...
The amount of individuals living in a given area is a...
What do you need to calculate population density?
number of individuals and area
Which stadium would have the higher density of football fans: 66,000 Philadelphia Eagles fans in Lincoln Financial Field, which has 67,594 seats, or 40,000 Pittsburgh Steelers fans in Heinz Field, which has a seating capacity of 65,050?
Lincoln Financial Feild
It is good for an ecosystem to be over populated with one species, true or false?
The formula to calculate population density is _____.
number of organisms divided by area
The way in which those organisms are arranged in their living space is called...
Gorillas live in social groups, much like humans. Which of the following is NOT a true statement about gorillas and their social groups?
gorillas are territorial with members of their own group
Which of the following is NOT a way in which population size changes?
When individuals leave a population, it is called...
Calculate the population growth for the following population of orangutans over a 20 year period: Births = 1025, Deaths = 900, Immigrations = 25, Emigrations = 10
If the (births + immigrants) value is greater than the (deaths + emigrants) value, the population size decreases, true or false?
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