Which of the following is not one of the three main characteristics of a population that we discussed in class as a group?

Question

BlackTom AI · Accepted Answer

To tackle this question, I’ll evaluate what the class identifies as the three main characteristics of a population: size/through time changes, geographic range or area, and the spacing or distribution of individuals within the population.

Option a: Typical food resources. This choice refers to resource availability, which is an ecological factor that can influence population dynamics but is not itself one of the three core characteristics used to describe a population as a group. It describes constraints or drivers rather than a descriptor of the population’s size, extent, or arrangement. Therefore, this statement does not belong to the trio of main characteristics.

Option b: Change in size through time. This directly measures how many individuals are in the population and how that number varies across time. It is a fundamental characteristic used to describe populations, reflecting growth, decline, or stability. Hence, this option correctly belongs to the core set.

Option c: Range / area. The geographic extent where the population is found is another essential descriptor. It indicates the spatial boundaries or distribution of the population, which is a standard characteristic when characterizing populations. So this option is correctly included.

Option d: Spacing among individuals. This describes how individuals are arranged within the population’s range, such as clustered or evenly dispersed patterns. It is commonly listed as a key characteristic when discussing population structure, making it a valid core trait.

In summary, options b, c, and d correspond to the three main characteristics used to describe a population (size over time, range/area, and spacing). Option a, typical food resources, is not one of those three core characteristics, though it can influence population dynamics indirectly. The statement in option a is therefore not part of the requested trio of main characteristics.

BIO 181 (001&002) FALL 2025 FA25: Cumulative Exam 4 covers the most important content from Units 1-4: You can do this!!! : ) [Grade is out of 150/900 pts, the same am't of pts for the active learning "easy points" classwork.]

Which of the following is not one of the three main characteristics of a population that we discussed in class as a group?

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