Tag Archive | "population density"

In Need Of Biology Help!?


1) A condition in the environment that can restrict a population’s growth is a
A) Niche
B) Limiting factor
C) growth factor
2) Which of the following is a measurement of population density?
A) The number of frogs in a pond
B) The number of deaths per year
C) the number of bacteria per square millimeter
3) Which would be least likely to be affected by a density-dependent factor?
A) A small, scattered population
B) A large, dense population
C) A population with a low death rate
Complete each sentence or statement:
The ___method of estimating population size involves measuring every member of a species within a small area.
Space, food, and ___ are density-dependent factors.

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Someone Answer These Plox?


1. _____ is the number of organisms within the same species that inhabit a specific area. Population density Exponential growth
Population dispersion A limiting factor
2. What is a community? a group of different species that inhabit the same environment a group of organisms that are of the same species and share a habitat
the species, abiotic factors, and biotic factors that inhabit the same environment the abiotic factors of a habitat
3. When one organism hunts another organism, what type of relationship exists? symbiotic predation
mutualism commensalism
4. _____ are organisms moved from their native environment to a new, nonnative habitat. Niches Parasites
Introduced species Communities
5. Even, random, and clumped all describe types of _____? exponential growth population density
population dispersion limiting factors
6. Which of the following is NOT an example of a limiting factor? habitat space availability of food
outbreak of disease migration
7. What causes interspecies competition within a community? when two or more species compete for resources when a single species dominates the food supply
when two species have different dietary requirements when a single species requires a variety of food sources
8. If there has been a competitive exclusion within a community, what has occurred? A species that had previously competed for food has been eliminated from the community by a more efficient species. Limiting factors have decreased competition within the community.
The carrying capacity of the habitat has been reached. Two species that previously competed for food have begun to share the resources equally.
9. In which of the following relationships do both of the organisms involved benefit from one another? predation mutualism
commensalism parasitism
10. Which of the following factors influence the global distribution of ecosystems?
I. atmospheric circulation
II. oceanic circulation
III. land formations
IV. local environmental conditions
I and II I and III
I, II, and IV I, II, III, and IV
11. Before the 20th century, the growth of the human population was relatively _____. rapid slow
unstable exponential
12. No two species in a single community occupy the same _____. population ecosystem
niche habitat

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Describe Specific Examples Of Ecology Seen In The Movie, Avatar.?


Examples:
Biosphere – Pandora
Species – Navi
I need the following:
Population
Community
Ecosystem
Producer (autotroph)
Consumer (heterotroph)
Decomposer
Food Chain
Biotic
Abiotic
Niche
Competition
Predation
Mutualism
Commensalism
Parasitism
Secondary Succesion
Population Density
Limiting Factor

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Describe Specific Examples Of Ecology Seen In The Movie, Avatar?


Examples:
Biosphere – Pandora
Species – Navi
I need the following:
Population
Community
Ecosystem
Producer (autotroph)
Consumer (heterotroph)
Decomposer
Food Chain
Biotic
Abiotic
Niche
Competition
Predation
Mutualism
Commensalism
Parasitism
Secondary Succesion
Population Density
Limiting Factor

Posted in Affiliate Marketing 101Comments (0)

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