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The prickly pear cactus has evolved spines that are its actual leaves. The evolutionary adaptation of these modified leaves is
Q13: The driving force that pushes the root
Q20: A monocot stem is represented by<br>A)I only.<br>B)II
Q23: The innermost layer of the root cortex
Q31: Synthesis of which of the following compounds
Q32: Two groups of tomatoes were grown under
Q40: In order for the four-chambered hearts of
Q50: The pollen tube (see the above figure)grows
Q70: Water flows into the source end of
Q75: Fruits develop from<br>A)microsporangia.<br>B)receptacles.<br>C)fertilized eggs.<br>D)ovaries.<br>E)ovules.
Q96: Which of the following plant hormones would