Plant & Animal Structures Lab

Discover the parts of plants and animals, learn what each structure does, and practice matching structures to their functions. Based on NGSS 4-LS1-1.

Guided Experiment: How do structures help plants and animals survive?

Pick one plant structure and one animal structure. Write what you think each one does to help the organism survive.

Write your hypothesis in the Lab Report panel, then click Next.

Controls

Explore plant and animal structures, match each structure to its function, and solve design challenges.

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Plant

Click a structure to learn more

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Bird

Click a structure to learn more

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Reference Guide

What Is a Structure?

A structure is a part of a living thing - like a leaf, a root, a beak, or a wing. Every structure has a job called its function.

Scientists study structures to understand how plants and animals survive. The shape and size of a structure often tells us a lot about its job.

Key idea: structures and their functions are shaped by millions of years of evolution.

Plant Structures

Plants have five main structures that help them survive:

  • Roots - absorb water and anchor the plant
  • Stem - transports water upward to leaves
  • Leaves - capture sunlight to make food
  • Flower - attracts pollinators for reproduction
  • Seeds - spread and grow into new plants

Animal Structures

Birds have structures that help them get food, stay safe, and reproduce:

  • Beak - gets and eats food
  • Wings - fly and escape predators
  • Feathers - insulation and flight
  • Eyes - detect prey and watch for danger
  • Talons - grip branches and catch prey

Structure and Function

The shape of a structure often matches its function. A flat leaf captures more sunlight. A sharp talon grips prey more securely.

Internal structures are inside the body. External structures are on the outside. Both types help organisms survive, grow, and reproduce.

NGSS 4-LS1-1: Plants and animals have internal and external structures that serve various functions in growth, survival, behavior, and reproduction.