Mississippi Science ZOO.9.14

ScienceGrades 9–12Zoology I and II

The Standard

ZOO.9: Students will understand the structure and function of phylum Chordata, class Aves, and how they demonstrate the characteristics of living things.

Dissect representative taxa and compare their internal and external anatomy and complexity.

2026 Mississippi College- and Career-Readiness Standards for Science · Phylum Chordata, Class Aves

Teacher's field guide

What Students Need to Do: Students dissect two bird species and identify external features and internal organs. They compare the size, shape, and arrangement of shared parts, such as beaks, feathers, crops, and gizzards.
What Mastery Looks Like: A student can locate the crop and gizzard in each specimen and explain what each does. They can use labeled sketches to compare the birds without calling one more evolved.
Common Misconceptions: Students may call the crop a stomach or think the gizzard has teeth. They may assume a larger organ means one bird is more advanced.
How to Assess It: On an exit ticket, ask students to sketch and label the crop and gizzard, then name one difference they observed between the two birds and explain what it might help each bird do.

Lesson moves

Dissect preserved quail and pigeon specimens in pairs, then sketch and label each bird’s beak, wing feathers, crop, and gizzard.
Show photos of both beaks and ask, “What might each bird eat, and which organ would help grind that food?”
Give pairs unlabeled photos of a crop, gizzard, heart, and lung to match to a bird anatomy diagram.
Examine a grocery-store chicken gizzard and ask students how a bird can grind seeds without teeth.

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A ready-to-print activity worksheet aligned to ZOO.9.14, with an answer key for the teacher on its own page. No account needed.

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