Charles and Francis Darwin Concluded from Their Experiments on Phototropism

question 29

Multiple Choice

Charles and Francis Darwin concluded from their experiments on phototropism by grass seedlings that the part of the seedling that detects the direction of light is the ________.

• A) tip of the coleoptile
• B) elongating cells in the coleoptile
• C) base of the coleoptile
• D) cotyledon
• E) phytochrome in the coleoptile

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Definitions:

Bare Copper Wire

A type of electrical wire made of pure copper without any insulation or protective sheathing, commonly used for grounding purposes.

J1939 Data Bus

A communication protocol based on CAN (Controller Area Network) used for electronic control units (ECUs) primarily in heavy-duty vehicles.

Stub Extending

Refers to adding an extension to a stub, which is a short length of pipe or tube used in piping systems or in programming to serve as a placeholder for future code.

Permitted Length

The maximum allowable length of a vehicle or combination of vehicles (e.g., truck and trailer) as regulated by jurisdictional road use laws.