The most light-sensitive cells in the eye are the
A. cells in the organ of Corti.
B. rods.
C. hair cells.
D. cones.
Answer: B
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Conservation International is an NGO that carries out well-publicized confrontations.
Answer the following statement true (T) or false (F)
The vast open ocean is dominated by picoplankton that are efficiently grazed by ________.
A. heterotrophic dinoflagellates B. ciliates and tintinnids C. whales D. copepods
Assume that water filling a crack in a rock undergoes cycles of freezing and melting. Which of the following statement is true?
a. Water shrinks as it melts, causing the crack walls to be pulled closer together. b. Water expands as it melts, causing the crack walls to be pushed apart. c. Water shrinks as it freezes, causing the crack walls to be drawn closer together. d. Water expands as it freezes, causing the crack walls to be pushed apart.
Paleoclimate studies require that scientists find paleoclimate ________, materials that have retained a unique signature of the ancient climate conditions.
A. models B. air bubbles C. proxies D. records