Mississippi Science ZOO.8

ZOO.8 is a cluster heading. These are the individual standards under it.

• ZOO.8.1

  Understand the evolution of tetrapods and the development of the structure and function of body systems and life cycles.

• ZOO.8.2

  Describe the constraints that require amphibians to spend part of their lives in water and part on land, including the morphological and physiological changes a...

• ZOO.8.3

  Describe adaptations that have led to reptiles living on land successfully.

• ZOO.8.4

  Define what it means to be ectothermic and identify ways in which reptiles regulate their body temperature.

• ZOO.8.5

  Describe how snakes use chemosensory to locate and track prey.

• ZOO.8.6

  Enrichment: Use an engineering design process to model biomimicry of ectothermic temperature regulation or chemosensory detection to meet a societal need. *

• ZOO.8.7

  Compare and contrast living and extinct reptiles.

• ZOO.8.8

  Explain the importance of tetrapod evolution.

• ZOO.8.9

  Identify the amniotic egg as the major derived characteristic of reptiles.

• ZOO.8.10

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

01

What Students Need to Do

Students identify shared chordate traits and explain how limbs and lungs helped early tetrapods move onto land. They trace a frog’s changes from tadpole to adult and explain why amphibians still need water. They compare reptile eggs, skin, temperature control, and snake senses with amphibian traits.

02

What Mastery Looks Like

A student connects a tadpole’s gills and an adult frog’s lungs and skin to where each can live. They explain how amniotic eggs and scales help reptiles live on land. They can describe a lizard moving between sun and shade and a snake using its tongue to collect chemical traces.

03

Common Misconceptions

Students may think an adult frog no longer needs water or that a reptile egg is just a frog egg with a shell. They may think ectothermic animals cannot control their temperature. Some think a snake’s tongue detects prey on its own, rather than carrying chemical particles to a sensory organ.

04

How to Assess It

Exit ticket: Draw a tadpole, an adult frog, and a shelled reptile egg. Label how each breathes or avoids drying out, then explain why frogs still need water to reproduce.

1. 01

   Place damp sponges in open dishes and under pinholed foil; weigh them the next day to model egg moisture loss.

2. 02

   Using frog life-cycle and lizard egg diagrams, write why a frog’s eggs need water but a shelled lizard egg can develop on land.

3. 03

   Sort tadpole, frog, snake, lizard, and dinosaur picture cards; match each to a limb, skin, egg, or sensory trait.

4. 04

   Sketch a bus shelter with movable shade panels based on a lizard’s sun and shade seeking; label how people would use them.

• ZOO.7

  Students will understand the structure and function of phylum Chordata, classes Chondrichthyes and Osteichthyes, and how they demonstrate the characteristics of...

• ZOO.10

  Students will understand the structure and function of phylum Chordata, class Mammalia, and how they demonstrate the characteristics of living things.

• ZOO.9

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

• ZOO.5

  Students will understand the basic structure and function of phylum Arthropoda, and how they demonstrate the characteristics of living things.