Producers in hydrothermal vent ecosystems are
A. archaea and bacteria.
B. archaea and plants.
C. archaea.
D. bacteria.
E. plants.
A. archaea and bacteria.
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Each cone responds primarily to a single color. What kinds of cones do normal humans have?
a. Three cones that perceive red, blue, and yellow light. b. Three cones that perceive red, blue, and green light. c. Three cones that perceive orange, green, and purple light. d. Four cones that perceive red, blue, yellow, and green light. e. All cones respond equally to all colors of the visible light spectrum.
All of the following statements about the cohesion-tension model are true EXCEPT
A. it is a model of how water and minerals are transported in xylem. B. it is dependent on the cohesive and adhesive properties of water. C. there is no expenditure of energy. D. tension created by transpiration in the leaves pulls water along the phloem from the roots hairs to the leaves.
What makes a water molecule polar?
What will be an ideal response?
Briefly, but comprehensively explain the purpose for the staining procedures uses in bacteriology.
What will be an ideal response?