Topic: Human Digestive System Subtopic: Digestion
What is absorption?
Answer: Absorption is a process of diffusion of small, diffusible molecules through the walls of digestive tract into the blood stream.
- How can phloem be described?
- What is an artificial pacemaker?
- What are xylem and phloem?
- How are atria and ventricles separated?
- Why large molecules cannot absorb into blood?
- What is aerobic respiration?
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