Every cell in the body carries special identification marker proteins called ________.
What will be an ideal response?
major histocompatibility (MHC) proteins
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Most life on Earth depends, directly or indirectly, on a process that combines water and carbon dioxide
to make carbon-based compounds. This process is called
a. aerobic respiration. b. decomposition. c. photosynthesis. d. anaerobic respiration. e. fermentation.
Specialized outgrowths of roots that increase the efficiency of absorbing water from the soil are called
A. root hairs. B. nodules. C. xylem. D. phloem.
How do lymphatic capillaries differ from blood capillaries?
A) They contain red blood cells. B) They have a wall only one cell layer thick. C) They are made by lymphocytes. D) They contain plasma. E) They have "dead ends."
Explain the function of ATP in muscle contractions
What will be an ideal response?