Which of the Following Growth Responses Causes the Shoots of a Plant

question 36

Multiple Choice

Which of the following growth responses causes the shoots of a plant grown in the dark to grow upward?

• A)phototropism
• B)thigmotropism
• C)photoperiodism
• D)gravitropism

---

Definitions:

Basilic

Often related to the basilic vein, which is a large vein on the upper arm that helps drain parts of the hand and forearm.

Vertebral Artery

The vertebral artery is one of the major arteries of the neck that supplies blood to the brain, particularly the posterior portion, including the cerebellum and the brainstem.

Posterior Cerebral Artery

A blood vessel that supplies blood to the occipital lobe of the brain, important for vision.

Innominate Artery

Another term for the brachiocephalic artery, which is a major blood vessel that supplies blood to the right arm and the right side of the head and neck.