Biological diversity is composed of what three levels?
A. trophic diversity, ecosystem diversity, and species diversity.
B. ecosystem diversity, species diversity, and process diversity.
C. genetic diversity, function diversity, and process diversity.
D. genetic diversity, species diversity, and ecosystem diversity.
D. genetic diversity, species diversity, and ecosystem diversity.
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Recall that several vascular bundles (containing phloem and xylem) are located around the circumference of a vascular plant stem. In contrast, a root contains one vascular bundle running down its center
What might account for this different arrangement of vascular bundles in stems and roots? A. Stems need to counteract the force of gravity (and support leaves), but roots do not. B. Roots need to quickly transport nutrients to the rest of the plant, but stems do not. C. Roots require less nutrients compared to stems.
Produces parenchyma, collenchyma, and sclerenchyma cells.
Choose the letter of the best match: A. protoderm B. vascular cambium C. apical meristem D. procambium E. ground meristem
Methylation affects protein synthesis by
affecting which of the following proteins?
a. histones b. RNA polymerase c. DNA polymerase d. hemoglobin e. transcription factors
The pioneer finches that colonized the island of
Kauai thrived on __________ of the native plants. a. the leaves b. the nectar c. the seeds d. the fruits e. all of these parts