You conduct a study on the relative abundance of different mating systems in Dunnocks and you observe that ca. 70% of all females and males are found in the two kinds of territories shown below
Who appears to be winning the "battle of the sexes" in the population that you studied?
What will be an ideal response?
ANS:
the males
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In Darwin's time, natural selection was thought to be primarily negative. However, we have since learned that positive selection is a powerful force, and it
A) creates new gene variants that enhance the phenotype. B) retains gene variants or combinations that promote successful reproduction. C) enables people to resist infectious diseases. D) enables us to alter our genotypes.
Blanks "C" and "D" should be labeled
respectively a. in; large b. in; small c. out; large d. out; small e. none of these
An important component of maintaining a successful aquarium is biological filtration. Bacteria such as Nitrosomonas and Nitrobacter colonize filters and use inorganic salts and inorganic carbon dioxide for their energy needs. Based on this, these bacteria are ____.
Fill in the blank(s) with the appropriate word(s).
Which of the following types of media is not selective?
A) m-Staphylococcus Broth B) Blood Agar C) Mannitol Salt Agar