What type of cell signaling occurs through the extracellular matrix to nearby target cells?
What will be an ideal response?
Paracrine signaling
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In SCUBA diving, breathing gas, a mixture of oxygen and other gases, is carried in a breathing tank on the diver's back. This gas must be pressurized so the diver can breath underwater; it is not sufficient to simply bring unpressurized breathing gas or normal air underwater. Based on the Fick diffusion equation, what can you conclude about the concentration of oxygen available to the diver underwater?
A. The atmospheric and water pressure increases the amount of oxygen that can be extracted from unpressurized breathing gas. B. The atmospheric and water pressure does not affect the amount of oxygen that can be extracted from unpressurized breathing gas. C. The concentration of oxygen is lower in breathing gas than in normal air. D. The atmospheric and water pressure decreases the amount of oxygen that can be extracted from unpressurized breathing gas.
Which of the following transposable elements are found in eukaryotes but not in prokaryotes?
A) IS elements B) Families of autonomous and nonautonomous elements C) Retrotransposons D) Ty elements E) B, C, and D only
Which of the following prokaryotes aid digestion in cattle, deer, and other animals that obtain nutrition from cellulose?
A) halophiles B) dinoflagellates C) methanogens D) cocci
A person with a diet very low in iron may not be able to make enough of a formed element in the blood called ________
Fill in the blank(s) with correct word