Write Out the First Three Terms and the Last Term $$\sum _ { i = 1 } ^ { 12 }$$

question 66

Multiple Choice

Write out the first three terms and the last term of the arithmetic sequence.
- $$\sum _ { i = 1 } ^ { 12 }$$

• A) \(- 5 + 0 + 5 + \ldots + 55\)
• B) \(0 + 5 + 10 + \ldots + 55\)
• C) \(0 + 20 + 70 + \ldots + 295\)
• D) \(- 5 - 0 + 5 - \ldots + 55\)

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Definitions:

Dominant Species

In a community, a species that as a result of its large biomass or abundance exerts a major influence on the distribution of populations of other species.

Common Species

A term referring to species that are frequently encountered within their habitat or geographical area, often well-adapted to living in human-altered environments.

Community

An assemblage of different populations that live together in a defined area and interact with each other.

Keystone Species

Species that have a disproportionately large effect on their natural environment relative to their abundance, often influencing both ecosystem structure and biodiversity.