Taq polymerase was isolated from a thermophile and is used in the polymerase chain reaction (PCR) technique because it does not become inactivated at high temperatures
Indicate whether the statement is true or false.
Answer: TRUE
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Courtship for Anolis lizards involves the male displaying a dewlap (skin under the throat area) that varies in appearance based upon the species. Lizards that are found in darker, more shaded environments will have dewlaps that are lighter in color because they are more noticeable by potential mates. Which of the following mechanisms best explains how speciation is at work in this example?
A. Postzygotic isolation B. Reinforcement C. Genetic drift D. Natural selection Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about speciation? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What is recombinant DNA?
A. DNA that is circular B. DNA that can no longer replicate C. DNA that comes from plasmids D. A segment of DNA containing sequences from two different sources
In an inverted aquatic biomass pyramid, which organisms are likely found at the bottom?
A. zooplankton B. smelts C. sharks D. phytoplankton E. trout
In general, communities in early succession will be dominated by fast-growing species with r-selected life histories.
Answer the following statement true (T) or false (F)