_________________ is a plant hormone that causes the dormancy of many seeds.
A) Abscisic acid
B) Cytokinin
C) Auxin
D) Gibberellin
Correct Answer:
Verified
Q10: Some plants reproduce asexually through horizontal stems
Q11: Early in the development of an angiosperm
Q12: Flowers which contain only male or female
Q13: The phenomenon known as phototropism is due
Q14: What characteristic describes wind-pollinated plants?
A)Small,greenish flowers
B)Plants grow
Q16: In angiosperms,an unusual reproductive process involving two
Q17: Synthetic _,such as 2,4-D,are routinely used to
Q18: The response of plants to touch is
Q19: When a plant blocks fertilization after recognizing
Q20: Male gametophytes are also known as _
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