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TOEFL
/
Listening practice
/ Section LYZT
Listen to an Academic Talk
Listen to part of a talk in a plant science class.
Listen
25. What is the speaker mainly explaining?
A
Why the same spiral pattern appears in many kinds of plants
B
How plants measure the angle between their leaves
C
Why some plants have more leaves than others
D
How the direction of sunlight determines the shape of a growing stem