How are simple diffusion and facilitated diffusion different?
a. Facilitated diffusion is passive transport, while simple diffusion is not.
b. Facilitated diffusion requires a transport protein, while simple diffusion does not.
c. Simple diffusion requires a transport protein, while facilitated diffusion does not.
d. Simple diffusion is passive transport, while facilitated diffusion is not.
Answer: b. Facilitated diffusion requires a transport protein, while simple diffusion does not.
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The ribs and sternum are considered to be part of ____
a. both the axial skeleton and the appendicular skeleton b. the axial skeleton only c. neither the axial skeleton nor the appendicular skeleton
d. the appendicular skeleton only e. the axial or appendicular skeleton depending on the animal
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A. fertilization. B. coevolution. C. germination. D. pollination.
An example of a non-enzyme containing receptor is:
A. Prolactin receptor B. Platelet-derived growth factor receptor C. Insulin receptor D. Epidermal growth factor receptor