Bell Work. Tuesday, February 19, 13
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1 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm
2 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm
3 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm a. is wrong because bryophytes are nonvascular plants that are small and lack true leaves, but the trees are large and have needle-like leaves
4 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm
5 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm b. is wrong because angiosperms are seed producing vascular plants that contain their seeds in fruit, but the trees contain their seeds in cones
6 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm
7 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm c. is wrong because ferns are seedless vascular plants that use spores instead of seeds, but the trees have seeds inside of cones
8 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm
9 Bell Work A student is walking through a coniferous forest, and notices large trees with needle-like leaves and seeds found within cones. Which of the following terms describes these large trees? a. bryophyte b. angiosperm c. fern d. gymnosperm d. is right because gymnosperms are seed producing vascular plants that contain their seeds in cones, just like the large trees the student notices
10 Characteristics of All Animals
11 Characteristics of All Animals eukaryotic cells
12 Characteristics of All Animals eukaryotic cells heterotrophs
13 Characteristics of All Animals eukaryotic cells heterotrophs no cell wall or chlorophyll
14 Characteristics of All Animals eukaryotic cells heterotrophs no cell wall or chlorophyll multicellular
15 Body Plans & Symmetry
16 asymmetrical: Body Plans & Symmetry
17 Body Plans & Symmetry asymmetrical: do not have a certain shape
18 Body Plans & Symmetry asymmetrical: do not have a certain shape
19 Body Plans & Symmetry asymmetrical: do not have a certain shape radial symmetry:
20 Body Plans & Symmetry asymmetrical: do not have a certain shape radial symmetry: bodies arranged around center point
21 Body Plans & Symmetry asymmetrical: do not have a certain shape radial symmetry: bodies arranged around center point
22 Body Plans & Symmetry asymmetrical: do not have a certain shape radial symmetry: bodies arranged around center point bilateral symmetry:
23 Body Plans & Symmetry asymmetrical: do not have a certain shape radial symmetry: bodies arranged around center point bilateral symmetry: two equal halves
24 Body Plans & Symmetry asymmetrical: do not have a certain shape radial symmetry: bodies arranged around center point bilateral symmetry: two equal halves
25 Nine Major Phyla from least to most complex
26 1. Porifera (sponges)
27 simplest animals 1. Porifera (sponges)
28 simplest animals asymmetric 1. Porifera (sponges)
29 simplest animals asymmetric 1. Porifera (sponges) do not have any tissues, organs, or systems
30 simplest animals asymmetric 1. Porifera (sponges) do not have any tissues, organs, or systems get food, water, and oxygen through their pores
31 2. Cnidaria
32 2. Cnidaria radial
33 2. Cnidaria radial carnivores
34 2. Cnidaria radial carnivores Ex: jelly fish, sea anemone, hydra
35 3. Platyhelminthes (flat worms)
36 3. Platyhelminthes (flat worms) very flat, ribbon-like bodies
37 3. Platyhelminthes (flat worms) very flat, ribbon-like bodies bilateral
38 3. Platyhelminthes (flat worms) very flat, ribbon-like bodies bilateral able to regenerate
39 3. Platyhelminthes (flat worms) very flat, ribbon-like bodies bilateral able to regenerate Ex: planarians, tapeworms
40 4. Nematoda (roundworms)
41 4. Nematoda (roundworms) round bodies, pointed at ends
42 4. Nematoda (roundworms) round bodies, pointed at ends radial and bilateral
43 4. Nematoda (roundworms) round bodies, pointed at ends radial and bilateral usually parasitic
44 4. Nematoda (roundworms) round bodies, pointed at ends radial and bilateral usually parasitic Ex: hookworms, heartworms, pinworms
45 5. Mollusca
46 5. Mollusca soft body and a muscular foot
47 5. Mollusca soft body and a muscular foot Ex: octopus, clam, snail
48 6. Annelida (segmented worms)
49 6. Annelida (segmented worms) segmented bodies, divided into little rings
50 6. Annelida (segmented worms) segmented bodies, divided into little rings bilateral
51 6. Annelida (segmented worms) segmented bodies, divided into little rings bilateral Ex: earthworm, leech
52 7. Arthropoda
53 7. Arthropoda segmented bodies with exoskeletons made of chitin
54 7. Arthropoda segmented bodies with exoskeletons made of chitin Ex: crustaceans (crabs, lobster, crawfish, shrimp), arachnids (spiders), millipedes, centipedes
55 8. Echinodermata
56 8. Echinodermata last group of invertebrates
57 8. Echinodermata last group of invertebrates spiny skin
58 8. Echinodermata last group of invertebrates spiny skin radial
59 8. Echinodermata last group of invertebrates spiny skin radial Ex: star fish, sea urchins, sand dollars
60 9. Chordata (vertebrates)
61 bilateral 9. Chordata (vertebrates)
62 bilateral 9. Chordata (vertebrates) Ex: mammals, fish, amphibian, reptiles, birds
63 Review Questions 1. What does it mean if an organism is asymmetrical? 2. What is the only phylum of animals that is asymmetrical? 3. What is the difference between radial and bilateral symmetry? 4. What is the common name for animals in the porifera phylum? 5. What are three examples of cnidarians? 6. What are is the difference between platyhelminths, nematodes, and annelids? 7. What are three examples of mollusks? 8. What are the two main classes of arthropods? 9. What type of symmetry do echinoderms exhibit? 10. What are the main classes of chordates? 11. What phylum exhibit asymmetry? 12. What phylum exhibit radial symmetry? 13. What phylum exhibit bilateral symmetry?
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