Francis Galton, a contemporary of Charles Darwin, studied variation in complex traits such as human height. Using the bar graphs shown below, answer the following question:
Which of the following statements best describes graph (a), which depicts Galton's data
showing distribution of offspring height from the tallest parents he studied?
A. The parental mean for the tallest parents is
larger than the mean height of their offspring.
B. The parental mean for the tallest parents is
smaller than the mean height of their
offspring.
C. The average height of the offspring from
the tallest parents is not related to the
average height of their parents.
D. The average height of the tallest parents is
not much more than the population mean
height.
A
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Analysis of the nutrient content of phloem is performed on phloem sap that is made available when an aphid is cut away from its stylet.
Answer the following statement true (T) or false (F)
The Gulf Stream
A. is the source of "El Nino" and is a major fishing ground. B. makes local climates uniform so that Great Britain has the same climate as Greenland. C. brings tropical Caribbean water to the east coast of North America and upper Western Europe. D. is the major Atlantic Ocean current that warms the eastern coast of South America. E. All of the choices are correct.
Hominin fossil footprints that are obviously bipedal date to about ________ years ago
A) 50,000 B) 100,000 C) 3.6 million D) 12 million
Molecule
What will be an ideal response?