Which is the best possible hypothesis for explaining changes in cortical robusticity overtime?a. The decrease in cortical robusticity associated with the appearance of modern humanswas rapid and dramatic and resulted in more lightly constructed skeletons.b. The increase in cortical robusticity associated with the appearance of modern humans wasgradual and resulted in larger brain size coupled with a greater ability to deal withpredators.c. The decrease in cortical robusticity associated with the appearance of archaic Homosapiens is a part of a long term trend beginning with australopithecines and ending withmodern Homo sapiens.d. None of these statements are an appropriate hypothesis for changes seen in corticalrobusticity. **Cortical Area (CA) Over Time**This graph illustrates the changes in cortical area (CA) across different time periods, measured in millions of years ago (Myr). The x-axis represents the cortical area ranging from 450 to 700, while the y-axis indicates time, from 0 to 2 million years ago.There are three categories represented by different symbols:- Squares represent early Homo- Circles denote archaic Homo sapiens- Triangles indicate modern Homo sapiensThe plotted data points show:- The cortical area remains relatively stable from 0 to 0.5 million years ago, with values slightly decreasing over time.- A significant drop in cortical area occurs after 0.5 million years ago, suggesting major evolutionary changes during this period.Through this graph, readers can observe the evolutionary trends in brain size among human ancestors and modern humans, illustrating how brain development has varied over time.

The correct option is: The Increasing cortical robusticity associated with appearanceof morden…

Answered: Which is the best possible hypothesis…

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter18: Introduction To Darwinian Evolution

Section: Chapter Questions

Problem 16TYU: INTERPRET DATA Which of the primates in Figure 18-18 is the most distantly related to humans?...

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Which is the best possible hypothesis for explaining changes in cortical robusticity over time? a. The decrease in cortical robusticity associated with the appearance of modern humans was rapid and dramatic and resulted in more lightly constructed skeletons. b. The increase in cortical robusticity associated with the appearance of modern humans was gradual and resulted in larger brain size coupled with a greater ability to deal with predators. c. The decrease in cortical robusticity associated with the appearance of archaic Homo sapiens is a part of a long term trend beginning with australopithecines and ending with modern Homo sapiens. d. None of these statements are an appropriate hypothesis for changes seen in cortical robusticity.

**Cortical Area (CA) Over Time**

This graph illustrates the changes in cortical area (CA) across different time periods, measured in millions of years ago (Myr). The x-axis represents the cortical area ranging from 450 to 700, while the y-axis indicates time, from 0 to 2 million years ago.

There are three categories represented by different symbols:
- Squares represent early Homo
- Circles denote archaic Homo sapiens
- Triangles indicate modern Homo sapiens

The plotted data points show:
- The cortical area remains relatively stable from 0 to 0.5 million years ago, with values slightly decreasing over time.
- A significant drop in cortical area occurs after 0.5 million years ago, suggesting major evolutionary changes during this period.

Through this graph, readers can observe the evolutionary trends in brain size among human ancestors and modern humans, illustrating how brain development has varied over time.

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