suggests that the genus Homo evolved a little over 2 million years ago. is reconstructed based on morphology and estimated age of fossils. provides a hypothesis of the evolutionary relationships among humans and their ancestors. all three of these statements are correct.
suggests that the genus Homo evolved a little over 2 million years ago. is reconstructed based on morphology and estimated age of fossils. provides a hypothesis of the evolutionary relationships among humans and their ancestors. all three of these statements are correct.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Transcribed Image Text:The hominid evolutionary tree (Figure 20.19)
Sahelanthropus tchadensis
Orrorin tugenensis
Ardipithecus ramidus
Ardipithecus
kadabba
Au. anamensis
Au. garhi
Au. afarensis
Au. africanus
P. boisel
- Homo
Paranthropus
= Australopithecus
= early hominids
= age of fossils
- inferred relationships between
hominid species
-- relationships of major groups
R aethiopicus
P robustus
H. ergaster
H. habilis
H. floresiensis
Hrectus
to
H. neanderthalensis
of hominids
H. heidelbergensis
H sapiens
miocene
pliocene
pleistocene
halocene
7.
5.
1.
millions of years ago
Figure 20.19 Evolutionary reconstruction of hominids; the human family tree. Age ranges of
fossils are shown by red lines, and tan lines represent inferred relationships based on fossil
evidence. Major groups are contained within colored boxes. Au. = Australopithecus; P. =
Paranthropus; H. = Homo.
%3D
%3D
%3D
suggests that the genus Homo evolved a little over 2 million years ago.
is reconstructed based on morphology and estimated age of fossils.
provides a hypothesis of the evolutionary relationships among humans and their
ancestors.
all three of these statements are correct.
Expert Solution
Step 1
Evolution is a slow process that occurs due to the variations and adaptation of organisms to their changing surroundings. Human evolution started near about 66 million years ago. The ancestors of monkeys and humans once had a common origin.
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