Mississippi Science BIO.5

ScienceGrades 9–12Biology

Standard Cluster

Students will Investigate and evaluate the interdependence of living organisms and their environment. Illustrate levels of ecological hierarchy, including organism, population, community, ecosystem, biome, and biosphere. Analyze models of the cycling of matter (e.g., carbon, nitrogen, phosphorus, and water) between abiotic and biotic factors in an ecosystem and evaluate the ability of these cycles to maintain the health and sustainability of the ecosystem. Analyze and interpret quantitative data to construct an explanation for the effects of greenhouse gases on the carbon dioxide cycle and global climate. Develop and use models to describe the flow of energy and amount of biomass through food chains, food webs, and food pyramids. Evaluate symbiotic relationships (e.g., mutualism, parasitism, and commensalism) and other co-evolutionary (e.g., predator-prey, cooperation, competition, and mimicry) relationships within specific environments. Analyze and interpret population data to define limiting factors, both density-dependent and density-independent. Use graphical representations (growth curves) to illustrate the carrying capacity within ecosystems. Investigate and evaluate factors involved in primary and secondary ecological succession using local, real-world examples. Enrichment: Use an engineering design process to create a solution that addresses changing ecological conditions (e.g., climate change, invasive species, loss of biodiversity, human population growth, habitat destruction, biomagnification, or natural phenomena). * Enrichment: Use an engineering design process to investigate and model current technological uses of biomimicry to address solutions to real-world problems. *

2026 Mississippi College- and Career-Readiness Standards for Science · Interdependence of Organisms and Their Environments

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Standards in This Cluster

BIO.5 is a cluster heading. These are the individual standards under it.

Teacher's field guide

What This Cluster Means

What Students Need to Do

Students identify ecological levels and trace carbon, nitrogen, phosphorus, and water through living and nonliving parts of ecosystems. They model energy flow and biomass in food webs. They use climate and population data to explain greenhouse gases and carrying capacity, then examine species relationships and succession.

What Mastery Looks Like

A student can label a pond food web, trace carbon into plants, and explain why herons have less biomass than fish. They can estimate carrying capacity from a graph and name a factor that could lower it. They can distinguish mutualism from parasitism and regrowth after fire from growth on bare rock.

Common Misconceptions

Students may confuse a population with a community or think energy cycles like matter. They may assume predators have the most biomass or that carrying capacity never changes. They may call regrowth after a fire primary succession.

How to Assess It

Draw algae → insects → fish → heron and a fish population curve that levels off at 80. Ask students to mark where carbon enters, explain why biomass decreases up the chain, estimate carrying capacity, and name a factor that could lower it.

Lesson moves

Ways to Teach It

  1. Give groups organism cards and yarn to build a pond food web, then use 1,000, 100, and 10 gram cards to stack biomass.

  2. Ask students to write a carbon atom's route from air to grass to rabbit to soil, then explain what burning fuel adds to the air.

  3. Hand out three population graphs and have pairs match each to drought, disease, or scarce food, defending each match with the curve.

  4. Bring photos of a recently cleared local lot and a bare rock face; ask which site already has soil and will regrow faster.

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Printable BIO.5 Worksheet

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