Mississippi Science MAQ.5.3
The Standard
- MAQ.5
- Students will explore the biodiversity and interactions among aquatic life.
Recognize characteristics that are shared and derived using graphical representations of primary-producer evolution and develop cladograms/phylogenetic trees.
2026 Mississippi College- and Career-Readiness Standards for Science · Primary Producers
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students read trait charts and evolutionary trees for aquatic producers. They use shared traits to group organisms, then draw a tree and mark where each trait first appeared.
What Mastery Looks Like
- A student places cyanobacteria outside the groups with chloroplasts. They group green algae with seagrass using chlorophyll b and mark seeds on the seagrass branch.
Common Misconceptions
- Students may group organisms by color or habitat instead of inherited traits. They may assume cyanobacteria have chloroplasts because they photosynthesize, or that all algae make seeds.
How to Assess It
- Give students this chart: cyanobacteria have no chloroplasts; red algae have chloroplasts; green algae have chloroplasts and chlorophyll b; seagrass has chloroplasts, chlorophyll b, and seeds. Ask them to draw a four-tip tree and mark where each trait first appeared.
Lesson moves
Ways to Teach It
Give pairs cyanobacteria, red algae, green algae, and seagrass cards; have them build a paper tree from a trait grid.
Ask, "Why is seagrass placed closer to green algae than red algae?" Have students use chlorophyll b in their answer.
Show two trees, one grouping seagrass with red algae; students choose the tree supported by the trait cards.
Show photos of a seagrass bed and an Ulva bloom; ask which producer could grow from a seed, using the trait chart.
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Printable MAQ.5.3 Worksheet
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Related Standards
- MAQ.7.2
Identify characteristics that are shared and derived using graphical representations of animal evolution and develop cladograms/phylogenetic trees.
- BIO.4.3
Analyze cladograms/phylogenetic trees to illustrate relatedness between species.
- FB.5.5
Enrichment: Create and analyze models that illustrate the relatedness between all living things (cladograms/phylogenic trees).
- MAQ.6.2
Identify characteristics that are shared and derived using graphical representations of animal evolution (i.e., cladograms and phylogenetic trees) and develop c...
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