Red light and phytochrome are involved in which of the following plant growth responses? (Check all that apply.)A) Stem elongationB) Inhibition of seed germinationC) Elongation of etiolated shootsD) Detection of crowding by neighboring plants
What will be an ideal response?
B, C, D
Phytochrome (Section 31.9) is involved in all the responses except stem elongation which is a function of gibberellins (31.8).
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An alien from another planet landed on earth. He is fascinated by cars and is determined to figure out how they work. He decides to disassemble one of them and examine each part independently. He removes one of the tires and proceeds to learn all he can about the tire. He then removes one of the headlights and proceeds to learn all he can about the headlight. What type of approach is this alien
taking to learn about the car? A. reductionism B. Emergent properties C. inductive reasoning D. deductive reasoning
Which scenario illustrates sexual dimorphism?
a. A male has a different body form than a female as a result of sexual selection. b. Males are more genetically promiscuous. c. Parenting duties are shared by mother and father. d. Males guard eggs until they hatch. e. Males guard a territory.
Members of the class __________ include blood-sucking parasites
A. Oligochaeta B. Polychaeta C. Polyplacophora D. Hirudinida E. Cephalopoda
Segmentation in arthropods differs from that of annelids because arthropod segments are:a
smaller. b. superficial. c. more specialized. d. only present in adults. e. only present in larvae.