Diagram and label a cross section of 1) a woody stem before the vascular cambium becomes active and 2) a woody
stem from the same plant after the vascular cambium has been active for a considerable length of time. What will be an ideal response?
Your first diagram should be similar to that shown in Fig. 35-3 part 1, and your second
diagram should be similar to that shown in Fig. 35-3 part 2.
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Trace elements dissolved in seawater are present in concentrations less than one part per thousand
Indicate whether the statement is true or false
The polyp form of a cnidarian has its tentacles pointed downward
____________________ Indicate whether the statement is true or false.
Two populations of plants look identical but their flowers are fertilized by different pollinators-one by a night-flying hummingbird moth, the other by honeybees. These two populations of flowers are examples of
A) identical gene pools. B) different species. C) identical evolutionary paths. D) the same species using different pollinators. E) groups within the same species.
Answer the following questions about DNA replication
A. On a DNA strand that is being synthesized, which end is growing—the 3? end, the 5? end, or both ends? Explain your answer. B. On a DNA strand that is being used as a template, where is the copying occurring relative to the replication origin—3? of the origin, 5?, or both?