Ardi (Ardipithecus ramidus) lived 4.4 million years ago, close to the time that our lineage diverged from chimpanzees suggesting that Ardi might be more similar to the last common ancestor than extant chimpanzees or humans. Ardi has small teeth like ours, indicative of a generalized diet. So small teeth are older than larger teeth of extant chimpanzees! Ardi also had limbs shaped more like ours than chimpanzees’. Ardi’s skull also shares other features with ours – for example, it is relatively narrow. The hypothesis we tested assumed that the hominin ancestor resembled chimpanzees, and the assumption was quite common among paleoanthropologists until recently (Lovejoy, 2009).Considering both these data about Ardi and the data that you took, revise your hypothesis. (1 point) Explain chimpanzee skull and/or skeletal development, in terms of regulatory genes (specifically, timing), in light of your new hypothesis. (0.5 points) Explain Homo sapiens skull and/or skeletal development, in terms of regulatory genes (specifically, timing), in light of your new hypothesis. (0.5 points)

1. The implied human predecessor nicknamed Ardi and revealed to the world last October was not the…

Answered: Ardi (Ardipithecus ramidus) lived 4.4…

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter23: Principles Of Evolution

Section: Chapter Questions

Problem 8SQ

See similar textbooks

Related questions

Concept explainers

Question

Ardi (Ardipithecus ramidus) lived 4.4 million years ago, close to the time that our lineage diverged from chimpanzees suggesting that Ardi might be more similar to the last common ancestor than extant chimpanzees or humans. Ardi has small teeth like ours, indicative of a generalized diet. So small teeth are older than larger teeth of extant chimpanzees! Ardi also had limbs shaped more like ours than chimpanzees’. Ardi’s skull also shares other features with ours – for example, it is relatively narrow. The hypothesis we tested assumed that the hominin ancestor resembled chimpanzees, and the assumption was quite common among paleoanthropologists until recently (Lovejoy, 2009).

Considering both these data about Ardi and the data that you took, revise your hypothesis. (1 point)
Explain chimpanzee skull and/or skeletal development, in terms of regulatory genes (specifically, timing), in light of your new hypothesis. (0.5 points)

Explain Homo sapiens skull and/or skeletal development, in terms of regulatory genes (specifically, timing), in light of your new hypothesis. (0.5 points)

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.

Similar questions