Winkler and Sheldon used the _____ to study _____ in swallows and martins
a. coefficient of relatedness; kin selection
b. coefficient of relatedness; nest building behavior
c. comparative method; mating systems
d. comparative method; nest building behavior
e. reproductive method; kin selection
ANSWER: d
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The endoplasmic reticulum is composed of flattened sacs called
A. vacuomes. B. cristae. C. thylakoids. D. cisternae.
A scientist who studies the influence of microbes in the formation of caves is called a(n) ________.
A. geomicrobiologist B. immunologist C. astrobiologist D. epidemiologist
Carotenoids are important to many plants because these pigments are able to:
A. remove carbon dioxide from the air B. absorb violet and blue-green wavelengths of light that are not absorbed by chlorophyll C. absorb water so that hydrolysis can be carried out in the chloroplasts D. store electrons for use during the "dark" reaction of photosynthesis E. capture UV radiation that is harmful to the DNA in the nucleus of plant cells
A cell that has a cell wall is undergoing cell division, and the following events are observed: the formation of a cell plate and the division of the cell into two daughter cells. What type of cell is being observed and what process(es) is it going
through? A) prokaryote; telophase of mitosis B) animal cell; telophase and cytokinesis of mitosis C) plant cell; telophase and cytokinesis of mitosis D) plant cell; telophase II of meiosis