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Animal Strategies I. Body Organization A. Complexity

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Presentation on theme: "Animal Strategies I. Body Organization A. Complexity"— Presentation transcript:

1 Animal Strategies I. Body Organization A. Complexity
From Cells to Tissues to Organs to Systems

2 B. Tissues 1. Epithelium 2. Connective Figure 40.5 Figure 40.5

3 3. Muscle 4. Nervous Figure 40.5 Figure 40.5

4 5. Embryonic Figure 47.1

5 Developmental stages of an Echinoderm
Figure 47.6

6 Differentiation yields endoderm, mesoderm, and ectoderm from the inner cell mass.
Figure 47.9

7 C. Systems Which body systems are involved in movement?
Which body systems are involved in homeostasis? Which body systems are involved in energy capture? Which body systems are involved in regulation?

8 Which body systems are involved in reproduction?
Which body systems are involved in protection? What are the body systems seen in animals?

9 II. Body Plan A. Traditional View 1. Evidence a. Metamorphosis
Based on Embryonic and Anatomic evidence 1. Evidence a. Metamorphosis Figure 32.2 b. Remodeling Figure 32.3

10 2. Grades - 35 animal clades based on a. Tissues Present
b. Body Symmetry Figure 32.11 Figure 32.8

11 d. Development Patterns
c. Body Cavities d. Development Patterns Figure 32.8 Figure 32.9

12 B. Molecular View 1. Evidence a. Lophotrochozoa b. Ecdyozoa
Based on DNA and rRNA evidence? a. Lophotrochozoa b. Ecdyozoa Figure 32.12

13 C. Comparison of Views.

14 III. Animal Phyla A. Invertebrata 1. Parazoans a. Phylum Porifera
Sessile adults, suspension feeders, hermaphroditic, and special cells called choanocytes and amebocytes

15 Figure 33.4

16 2. Radiata a. Phylum Cnidarians Cnidocytes and Nematocysts Figure 33.7

17 b. Phylum Ctenophora Comb jellies

18 3. Protostomia a. Lophotrochozoa i. Phylum Platyhelminthes Flat worms

19 Figure 33.10 Figure 33.12

20 ii. Phylum Nemertea Proboscis or Ribbon worms with complete digestive tract and closed circulatory system.

21 iii. Phylum Mollusca

22 Phylum Mollusca Figure 33.16 Figure 33.18 Figure 33.20 Figure 33.17

23 iv. Phylum Annelida Figure 33.22, 23 & 24

24 b. Ecdysozoa i. Phylum Nematoda
Figure 33.27 Figure 33.26 Roundworms = moist habitat; non-segmented, short tapered ends, a cuticle exoskeleton, pseudocoelomic, and sexual

25 ii. Phylum Arthropoda

26 Phylum Arthropoda Figure 33.32 Figure 33.33 Figure 33.40 Figure 33.30

27 4. Deuterostomia a. Phylum Echinodermata

28 Radial yet segmented Figure 33.37 Figure 33.44

29 B. Vertebrata 1. Deuterostomia a. Phylum Chordata
i. “Invertebrata” Chordates tunicates lancelets Figure 34.5 Figure 34.4 Notochord, Dorsal Nerve Cord, Pharyngeal Slits, & Post anal Tail

30 Myxini & Petromyzontida
ii. Gnathostomes? Myxini & Petromyzontida Figure 34.7 Jawless Fish Figure 34.8 Notochord, Dorsal Nerve Cord, Pharyngeal Slits, & Post anal Tail

31 Gnathostomata or jawed with no bones
iii. Chondrichthyes Gnathostomata or jawed with no bones Figure 34.14

32 Gnathostomata or jawed fish with bone
iv. Osteichthyes Gnathostomata or jawed fish with bone Figure 34.16

33 in and out plus tetrapod
v. Amphibia in and out plus tetrapod Figure 34.21

34 Out with Amniote eggs vi. Reptilia Figure 34.27 Figure 34.28

35 Feathers with Amniote eggs
vii. Aves Feathers with Amniote eggs Figure 34.32, 34, & 35

36 Eutherians (placentals)
viii. Mammalia Hairy with breasts Monotremes (eggs) Eutherians (placentals) Marsupials (pouched) Figure 34.35


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