Summarize the experiment by Darwin that provided the first evidence for auxins
What will be an ideal response?
See Figure 38-5 in textbook for details.
Answer should include the following points:Coleoptiles
uncovered: bend towards light rays
Coleoptile tips covered: no bending
Coleoptile tips removed: no bending
Coleoptiles covered everywhere but tip: tip bends toward light rays
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All terrestrial ammonia-oxidizing bacteria are ?-proteobacteria, including Nitrosomonas and Nitrosospira in the Nitrosomonadaceae family.
Answer the following statement true (T) or false (F)
For animals, the final hydrogen acceptor in
cellular respiration is a. NADP+. b. sulfur. c. oxygen. d. magnesium. e. phosphorus
In the dermal tissue, _______ are associated with stoma.
A. Pigment cells B. Collenchyma cells C. Trichomes D. Epidermal cells E. Guard cells
Of the following sequences, which one reflects the best scientific knowledge about the succession of Homo species from the past until the present?
A. Homo sapiens ? Homo heidelbergensis ? Homo habilis ? Homo erectus B. Homo heidelbergensis ? Homo habilis ? Homo sapiens ? Homo erectus C. Homo heidelbergensis ? Homo sapiens ? Homo erectus ? Homo habilis D. Homo habilis ? Homo erectus ? Homo heidelbergensis ? Homo sapiens E. Homo habilis ? Homo heidelbergensis ? Homo erectus ? Homo sapiens