The study of phylogeny:
a. aims to understand the branching relationships of populations as they give rise to descendant populations over time.
b. aims to document evolutionary history.
c. aims to provide a theoretical basis for Darwin's idea of a branching pattern of descent with modification.
d. All of the above.
A
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Carbohydrates are stored in the roots, but they may also be released into the surrounding soil, where they feed the microbial community
A. true B. false
What causes tidal overmixing in estuaries?
a. strong tidal currents. b. strong river flow. c. an unstable water column. d. downwelling. e. animal migrations.
When you drink a large volume of water, the release of ____ by the pituitary gland ____
a. aldosterone; increases b. aldosterone; decreases c. ADH; increases d. ADH; decreases e. ANP; increases
In eukaryotes, genetic information is passed to the next generation by processes that include mitosis or meiosis
Which of the explanations identifies the correct process and supports the claim that heritable information is passed from one generation to another? A) During mitosis, DNA replication occurs twice within the cell cycle to insure a full set of chromosomes within each of the daughter cells produced. B) Mitosis, followed by cytokinesis, produces daughter cells that are genetically different from the parent cell, thus insuring variation within the population. C) In asexual reproduction, a single individual is the sole parent and passes copies of its genes to its offspring without the fusion of gametes. D) Single-celled organisms can fuse their cells, reproducing asexually through mitosis to form new cells that are not identical to the parent cell.