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1. The number of individuals in a population is the population’s _____. (1 point)
carrying capacity
size
density
spacing
2. _____ is the largest number of individuals of a species that an environment can support and maintain for a long period of time. (1 point)
Population size
Limiting factor
Carrying capacity
Symbiosis
3. A _____ is the role an organism plays in the ecosystem. (1 point)
habitat
symbiosis
population density
niche

Making a study guide.
1. Predict the change in an ecosystem if an organism is removed or introduced.
2.Describe how the biological concept of a niche helps reduce competition.
3 What is colonization?
4.Communicate the need to prevent animal extinction.
5.Identify the ecological succession as a series of changes in a community in which new populations of organisms gradually replace existing ones form colonization to climax community and through secondary succession after a disaster.
Thanks to all that help!

I have to do an investigation assignment regarding the ecological niche of an organism. I chose radishes, and the first thing I need to do is write a page or two about its ecological niche. Please write everything you know and give me any links to websites that you think are suitable. Please also suggest that what aspect of the niche can I investigate. Thank you very much for your help in advance.

An organism with a small niche?
An organism that occupies a large niche?
Word that means tending to move toward one point or to approach each other?
Over time the original _ _ becomes an _ and is _ on or down through the _

For a science poster I have to arrange some terms from “biggest” to “smallest” based on how where the terms fit in a biosphere. My teacher assigned this project before we have actually started the unit, so we haven’t learned this yet and I don’t know if I have them in the right order. These are the words in the order I put them in:
Biosphere
Biome
Ecosystem
Community
Population
Habitat
Niche
Organism
Is this how you would have ordered them? I know for sure that the first and last terms are right, but I’m not sure about the rest.

A niche is an organism’s role in an ecosystem. What is the niche of a brown bear in a temperate rain forest ecosystem?