When fisheries managers move fish from one lake to another, this causes gene ______.
A. mutation
B. blending
C. flow
D. dominance
C. flow
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Which of the following are the best examples of homologous structure?
a. The finger bones found in humans, bats, and whales b. Wings in both birds, bats, and bees c. Beaks of birds and squid d. The streamlined, hydrodynamic bodies of both dolphins and sharks
The current rapid loss of species is considered by many scientists to be another mass extinction. What may be causing this increase in extinction rate, beyond background extinction?
A) a recent increase in earthquakes worldwide B) human population growth and the resulting habitat changes worldwide C) global climate change D) changes in the number of solar flares observed recently
Algae and cyanobacteria are examples of primary producers
____________________ Indicate whether the statement is true or false.
A plant with purple flowers is allowed to self-pollinate. Generation after generation, it produces purple flowers. This is an example of
A) hybridization. B) incomplete dominance. C) true-breeding. D) the law of segregation. E) polygenetics.