Evolution ACORNS item #01


Q.

A species of blazingstar has bract. How would biologists explain how a species of blazingstar with bract evolved from an ancestral blazingstar species without bract?

 


Special Instructions

We recommend that you administer these questions as homework and preface the question with these instructions for students:

"For the following question, please respond to the best of your knowledge and using only the information in the question and what you know. Please do not refer to any outside sources (textbooks, notes, internet, etc.). Any reasonable attempt to answer the question will be awarded full credit."

To administer this question:

  1. Create a text question in your learning management system
  2. Copy the text and any images for the question from this web site and paste it into your learning management system.

To analyze your data for questions with Reports Available:

  1. Login to your account on this website
  2. Return to this question
  3. Click on the link below Analyze your data for this question.
  4. Upload your spreadsheet for analysis

Background Information

Developed by: R. Nehm's group as part of the ACORNS instrument.

This item has been developed to analyze students' written explanations of evolutionary change.  This item can be used to elict responses which can be scored for nine standards-based concepts.  Analysis of responses to this item can also provide information about general student reasoning models.

For more information about the assessment instrument or analysis of this item, visit: www.evograder.org

 


Question Instructions

We recommend that you administer these questions as homework and preface the question with these instructions for students:

"For the following question, please respond to the best of your knowledge and using only the information in the question and what you know. Please do not refer to any outside sources (textbooks, notes, internet, etc.). Any reasonable attempt to answer the question will be awarded full credit."

Find Questions

Upload Data

Review