THE STUDY OF ECOLOGY

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exponential growth

population growth based on the reproduction capability of individuals, despite available resources

logistic growth

population growth that reaches equilibrium and carrying capacity

There are three main branches of ecology:

1. population ecology, which focuses on changes occurring in one population or species 3. systems ecology, which focuses on complex ecological communities and all their interacting parts 2. applied ecology, which focuses on how human activities affect an ecosystem and ways to mitigate resulting issues

There are 20 mice in a 5 m2 field ecosystem. The population density of mice is _____.

4 per m2

Which of the following is an abiotic factor in an ecosystem?

Sunlight

population

a group of interacting individuals of the same species within the same geographic area

What is a population?

a group of organisms of the same kind or species

natality

birth rate

mortality

death rate

The study of the interactions between living things and their environment is called_____.

ecology

As population density------ , competition increases.

increases

biotic

living

Ecology is made up of _____.

many sciences

Which of the following is a geographical limit?

mountains

When determining the growth rate, you need to know _____.

natality mortality immigration rate emigration rate

abiotic

not living

Bacteria would be considered a(n)----- species.

r- selected

K-selected

species that are adapted to live in equilibrium at carrying capacity

r-selected

species that are adapted to maximize their reproductive rate despite carrying capacity

community

the interacting populations within a geographic area

ecology

the knowledge or life science that studies how living things depend on each other and their environment; the relationships of an organism with its total environment

Carrying capacity is _____.

the number of organisms an ecosystem can support

population density

the number of organisms living in a particular area

carrying capacity

the total number of organisms that an ecosystem can handle


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