English for

Digestion 
– 
the process of preparing food for absorption by physically and enzymatically dissolving it in the 
digestive system into less complex chemical components
 
During Reading 
B.
 
Focus on a Reading strategy 
These readings go in-depth on the respiration and digestive systems of a variety of living things. In your 
text highlight the answer to each of these questions and then write a short summary answer in your own 
words: 
1.
What is breathing? 
110
Clark M.,Choi, J. Douglas M. (2020) 
Biology 2e
. Chapter 35, -Pp 977-980. OpenStax, 
https://openstax.org/details/books/biology-2e
) 

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207 
2.
Why can a flatworm use simple diffusion for respiration while this process is insufficient for 
other, larger organisms?
3.
How do fish use gills for respiration? 
4.
How do insects use their trachea for respiration? 
5.
How do mammals use their lungs, bronchi and alveoli for respiration?
6.
How do herbivores, carnivores and omnivores differ? 
7.
How do vertebrate and invertebrate digestive systems differ? 
8.
What is special about a ruminant vertebrate digestive system?
Post-Reading
C.
 
Review of Key concepts 
Look at your pre-reading diagram – and now create a new one including key things that you learned from 
your reading. A complete diagram would include the following vocabulary:
 
Unit VII. ANIMAL KINGDOM 
Topics
: 
 
7.1 
Animal Structure, Protection and Movement
7.2 
Homeostasis 
7.3 
Respiration and Digestion 
7.4 
Nervous and Endocrine System 
7.5
Reproduction in Animal World