5. How do the phalanges in your four chosen species differ, and what is the functional significance of those differences?

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Chapter43: Muscles, Bones, And Body Movements
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Please help.with question. 5

Table 4.1 Comparison of Vertebrate Skeletons
Animal Locomotion or Direction or Name of bone Comparison to Humans
(or bone group)
Function
(walk, land, fly etc)
Position
(from body)
Cat
land
a. Femur
a. Femur
b. clavicle
b. Scapula
c. ulna
c. ulna
d. fibula
e. Tarsals
d. tarsals
e. lumbar vertebrae
f. meta-Tarsals
Frog
a. carpus
a. tarsals
b. scapula
b. scapula
c. Humerus
c. humerus
d. Radius
d. radius
a. tarsals
b. scapula
c. thoracic cage
Rat
land
Ja. tarsals
b. scapula
c. thoracic cage
d. vertebrae
d. coxa
е. соха
la. femur
a. femur
Deer
b. humerus
b. humerus
c. scapula
c. scapula
d. coccyx
d. cocсух
Comparative vertebrate Skeletal Questions:
1. Name the limb bones common to all species examined.
Do skeletal similarities support the hypothesis that the
three shared a common ancestor, or are the skeletons so
different that you think shared ancestry is unlikely?
2. How do the shapes and relative sizes of homologous
appendicular skeletal bones differ among these species?
Give specific differences between individual species.
3. How do the shapes and relative sizes of homologous
axial skeleton bones differ between the species examined?
4. How do those differences reflect the animal's locomotion
and lifestyles? Describe specific examples from the
materials examined.
5. How do the phalanges in your four chosen species differ,
and what is the functional significance of those
differences?
Transcribed Image Text:Table 4.1 Comparison of Vertebrate Skeletons Animal Locomotion or Direction or Name of bone Comparison to Humans (or bone group) Function (walk, land, fly etc) Position (from body) Cat land a. Femur a. Femur b. clavicle b. Scapula c. ulna c. ulna d. fibula e. Tarsals d. tarsals e. lumbar vertebrae f. meta-Tarsals Frog a. carpus a. tarsals b. scapula b. scapula c. Humerus c. humerus d. Radius d. radius a. tarsals b. scapula c. thoracic cage Rat land Ja. tarsals b. scapula c. thoracic cage d. vertebrae d. coxa е. соха la. femur a. femur Deer b. humerus b. humerus c. scapula c. scapula d. coccyx d. cocсух Comparative vertebrate Skeletal Questions: 1. Name the limb bones common to all species examined. Do skeletal similarities support the hypothesis that the three shared a common ancestor, or are the skeletons so different that you think shared ancestry is unlikely? 2. How do the shapes and relative sizes of homologous appendicular skeletal bones differ among these species? Give specific differences between individual species. 3. How do the shapes and relative sizes of homologous axial skeleton bones differ between the species examined? 4. How do those differences reflect the animal's locomotion and lifestyles? Describe specific examples from the materials examined. 5. How do the phalanges in your four chosen species differ, and what is the functional significance of those differences?
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