Watch the videos and answer the question.

Book:
Campbell Essential Biology with Modified Mastering Access, by Freeman, 2016 Edition.
Publisher: Pearson
ISBN: 9780134216324

Answer the following questions in your own words.

What types of structures allow animals to obtain (ingest) food?
What types of structures provide locomotion for animals?
How do genetics determine an organism’s structure?
How has natural selection influenced the types of structures we see in animals today?
List 5 animal phyla introduced in your book and briefly describe the characteristics of each.
Why must the circulatory and respiratory systems work together?
In words, trace blood flow through the systemic and pulmonary circuits

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