Embryology & Pharyngeal Pouches

Multiple Choice

Why is embryology evidence important?

• It shows that we are people.
• We can figure out why things evolved.
• So that we know how things evolved.
• It helps us understand that we are related to other creatures.

Multiple Choice

How does embryology support the Theory of Evolution?

• It shows that they have a common ancestor because of their similarities.
•          I'm not sure.
• Animals change over time. 

Multiple Choice

Which vocabulary word describes the arrangement of parts in an organism?

• external

• structure

• function

• embryology

Multiple Choice

What will we learn today?

• A. How animals look as adults

• B. How embryos of vertebrates show evidence of evolution

• C. How to classify animals

Multiple Choice

What is an Embryo?

• The baby chick after it has hatched

• The name given to the animal before birth in its early stages

• The baby chick's father

Multiple Choice

What is embryology?

•          Adaptation.
• The study of fetus and embryo development, and fertilization.
•            Evolution.
•  The study of fossils.

Multiple Choice

What is the first step of embryonic development?

• Fertilization

• Blastocyst

• Gastrulation

• Mesoderm

Multiple Choice

Human embryos have _________, and human adults don't

• arms
• gills
• hard shell
• beak

Multiple Choice

This image shows the development of two embryos.

Based on these images, which statement is true?

• Their brains will function the same way after birth.

• Their tails and legs are different as embryos.

• Their eyes and heads are similar as embryos

Open Ended

Do you have any questions about embryology or pharyngeal pouches, or would you like to learn more about how they provide evidence for evolution?

Fill in the Blank

In fish, pharyngeal pouches develop into ___, which help regulate calcium.

Multiple Choice

Why is the study of embryology significant in understanding evolution?

• It helps us understand how organisms develop from fertilization to birth and reveals evolutionary relationships.

• It is mainly used to classify animals based on their adult forms.

• It studies the behavior of animals in their natural habitats.