A ____ is distinct from a food web in that it illustrates the movement of energy—not carbon—between different organisms in an environment
Fill in the blank with the appropriate word.
trophic pyramid
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During DNA replication, the lagging strand is synthesized by forming Okazaki fragments. The enzyme that joins Okazaki fragments together is
A. ligase. B. primase. C. DNA polymerase. D. ATP synthase. E. helicase.
Flowers consist of modified leaves (sepals, petals,
__________, and __________ ) at the ends of specialized branches. Fill in the blank(s) with the appropriate word(s).
The tendency of certain forest species to occur in certain habitats (ridge tops or moist river bottoms, for example) is convincing evidence for the closed community concept.
a. true b. false
You have a series of cells, some of which are cancerous. How might you determine which cells are cancerous?
A. Identify the cells that are not dividing uncontrollably. B. Identify the cells that have increased rates of cell death. C. Identify the cells with abnormal chromosome number or structure. D. Identify the cells that utilize Ras protein for growth inhibitory signals.