A major evolutionary trend among plants is
What will be an ideal response?
a reduction in the size of the gametophyte and an increase in the size of the sporophyte.
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Hemoglobin is a(n) ____________________-containing protein in red blood cells
Fill in the blank(s) with correct word
Many amphibians now face extinction, and one cause is believed to be a __________ fungus. Fill in the blank(s) with the appropriate word(s)
When mast cells degranulate and release histamine, which of the following events may occur?
A) constriction of small blood vessels B) bronchial spasms C) increased mucus production D) both constriction of small blood vessels and bronchial spasms E) both bronchial spasms and increased mucus production
Which of the following would you expect to be happening if a plant is showing water stress?
A. Abscisic acid is being transported to the guard cells. B. The phloem is transporting abscisic acid upward. C. Xylem is no longer functioning to carry water up the plant. D. Blue light is influencing the guard cells. E. All of the answers are correct.