Stickleback Evolution Lab Part 1: Biology Lab Report – Lab 3, Week 4

Summary

Stickleback fish live in different places. Students learn how to study the differences in their pelvic structures. They find out how to collect and analyse data, and draw conclusions about evolution.

Lab Setup

Students go to a virtual lab. They read about stickleback fish and watch videos. They learn how to score the pelvic structures of stickleback fish.

Experiment One

Students study the pelvic structures of stickleback fish from two lakes. They do a staining experiment on the fish. They watch videos about the lakes and the fish.

Data Collection

Students score the pelvic structures of the fish. They count each phenotype. They create a graph from their data. They compare the pelvic phenotype between the two lakes.

Analysis

Students explain why the stickleback fish in one lake are more similar to ocean and sea-run stickleback. They take a quiz and submit their progress.

Key terms

Pelvic structures

The bones and spines in the pelvic area of stickleback fish.

Phenotype

The observable traits of an organism, such as the pelvic structure of a stickleback fish.

Staining experiment

A process used to make the pelvic structures of stickleback fish more visible.

Bear Paw Lake and Frog Lake

Two lakes in Alaska where stickleback fish were collected for this study.

Virtual lab

An online platform where students can conduct experiments and collect data.

Scoring

The process of assessing and recording the pelvic structures of stickleback fish.

Questions this document helps with

• How do spines protect ocean stickleback fish?
• What are the differences between Bear Paw Lake and Frog Lake?
• Why is it important to study larger-sized samples?

Summary written with AI from the document's text.