TOPIC

Comparative Biology, Anatomical and genetic evidence

MY PROGRESS

Pug Score

0%

Best Streak

0 in a row

Study Points

+0

Overview

Practice

Watch

Read

Quiz

Next Steps

Get Started

Get unlimited access to all videos, practice problems, and study tools.

Try Now
Unlimited practice
Full videos

Back to Menu

Topic Progress

Pug Score

0%

Videos Watched

0/0

Best Practice

No score

Read

Not viewed

Best Quiz

No attempts

Best Streak

0 in a row

Study Points

+0

Overview

7th Grade Science
Evolution
3. Evidence
3.2 Comparative Biology, Anatomical and genetic evidence

Comparative Biology: Unlocking Evolution Through Anatomy and Genetics

Discover how scientists use body structures and DNA comparisons to reveal the evolutionary relationships connecting all living species on Earth.

What You'll Learn

Homologous structures share bone arrangements inherited from common ancestors.
Analogous structures perform similar functions but evolved completely independently.
Vestigial structures are non-functional remnants revealing an organism's evolutionary past.
DNA comparisons measure genetic similarity to determine evolutionary relationships between species.

What You'll Practice

1

Students identify homologous, analogous, and vestigial structures with examples.

2

Learners compare DNA sequences to determine closeness of evolutionary relationships.

3

Practice questions distinguish convergent evolution from true common ancestry evidence.

Why This Matters

Comparative biology equips students with the analytical tools to interpret anatomical and genetic evidence, forming the foundation for understanding evolution, genetics, and the interconnectedness of all life.

This Unit Includes

1 Video lesson
Practice exercises
Learning resources

Skills

Homologous Structures
Analogous Structures
Vestigial Structures
DNA Comparison
Convergent Evolution
Pug instructor
ms flag

MS Curriculum Aligned