Multiple Choice
Chemicals produced by one group of cells that affect other target cells are called
A) secretions.
B) signaling molecules.
C) steroids.
D) polymers.
E) enzymes.
Correct Answer:

Verified
Correct Answer:
Verified
Q5: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8664/.jpg" alt=" -The effect of
Q15: All EXCEPT which of the following has
Q16: 2,4-D, a potent eudicot weed killer, is
Q17: Auxin concentration gradients<br>A)appear once germination begins.<br>B)cause regional
Q17: Short-day plants<br>A) flower in early spring.<br>B) will
Q19: Use the above figure to answer questions
Q21: Day-neutral plants are<br>A)short-day plants.<br>B)able to bloom when
Q23: The target cells for hormones<br>A)have special receptor
Q25: Which of the following is NOT one
Q63: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8664/.jpg" alt=" -The plant movement