Phylum Mollusca 9242020 Animal diversity 2 Phylum Mollusca

Phylum Mollusca 9/24/2020 Animal diversity 2

Phylum Mollusca 9/24/2020 Animal diversity 3

Phylum Mollusca 9/24/2020 Animal diversity 4

Phylum Mollusca Figure 33. 20 9/24/2020 Animal diversity 5

Phylum Mollusca 9/24/2020 Animal diversity 6

Phylum Mollusca Figure 33. 22 b 9/24/2020 (b) Squids are speedy carnivores with beaklike jaws and well-developed eyes. Animal diversity 7

Phylum Mollusca Figure 33. 22 c 9/24/2020 (c) Chambered nautiluses are the only living cephalopods with an external shell. Animal diversity 8

Phylum Mollusca . 1 Representative animal : Snails, Clams, Squids 2. Unique Characteristic : 2. 1 �������������� Pen ����� 2. 2 �� ventral foot ��� /���� Siphons ����������. 3 Level of Organization : Organ grade 4. Symmetry : Bilateral. 5 Body Cavity/Coelom : Coelom/Eucoelom. 6 Digestion : Complete digestive tract (�� diverticulum( 9/24/2020 Animal diversity 9

Phylum Mollasca . 8 Gas Exchange : Diffusion. 9 Waste disposal : Kidneys. 10 Nervous system : �� Ganglion 3 ��� - Cerebral ganglion (= simple brain( Visceral ganglion (������� ( Pedal ganglion (������ foot( . 11 Reproduction : sexual (sex saparate) ������. 12 Classification : 7 class . 1 Aplacophora 2. Monoplacophora : ��. 3 Polyplacophora : ���� 4. Gastropoda : ����� , ���. 5 Bivalvia : ������ (2 �� ) 6. Scaphopoda : ����� 9/24/2020 Animal diversity 10. 7 Cephalopoda : ����������� (Nuatilus(

Phylum Annelida แมเพรยง Parapodia Figure 33. 24 9/24/2020 Animal diversity 11

Phylum Annelida ไสเดอนดน 9/24/2020 Animal diversity 12

Phylum Annelida ปลงนำจด 9/24/2020 Animal diversity 13

Phylum Annelida . 1 Representative animal : Sandworms, Earthworms, Leeches 2. Unique Characteristic 2. 1 ��������� 2. 2 ���� 3. Level of Organization : Organ grade 4. Symmetry : Bilateral 5. Body Cavity/Coelom : Coelom 6. Digestion : complete digestive tract. 7 Circulation : Closed system. 8 Gas exchange : diffusion by skin (������� ( 9/24/2020 Animal diversity 14

Phylum Annelida . 9 Waste disposal : Pair of Metanephridia 10. Nervous system Cerebral ganglion Ventral nerve cord. 11 Reproduction : Sexual ����� (Hermaphrodite) , Cross-fertilized 12. Classification : 3 Class. 1 Class Polychaeta ��������. 2 Class Oligochaeta ��������. 3 Class Hirudinea �������� - 9/24/2020 Animal diversity 15

Phylum Arthropoda : Trilobites 9/24/2020 Animal diversity 16

Phylum Arthropoda แมงดาทะเลหางเหลยม horse shoe crab 9/24/2020 Animal diversity 17

Phylum Arthropoda : Arachnida แมงปอง , ไร mite, แมงมม 50 µm (a) Scorpions have pedipalps that are pincers (b) Dust mites are ubiquitous scavengers in (c) Web-building spiders are generally specialized for defense and the capture of human dwellings but are harmless except most active during the daytime. food. The tip of the tail bears a poisonous to those people who are allergic to them stinger. (colorized SEM). 9/24/2020 Animal diversity 18

Phylum Arthropoda แมงมม Arachnida Digestive gland Intestine Stomach Heart Brain Eyes Poison gland Ovary Anus Book lung Spinnerets Silk gland 9/24/2020 Sperm Gonopore (exit for eggs) receptacle Animal diversity Chelicera Pedipalp 19

Phylum Arthropoda กงกอ millipedes : Diplopoda 9/24/2020 Animal diversity 20

Phylum Arthropoda ตะขาบ Centepedes : Clilopoda 9/24/2020 Animal diversity 21

Phylum Arthropoda Insecta แมลง ๑ 9/24/2020 Animal diversity 22

Phylum Arthropoda Insecta แมลง ๒ 9/24/2020 Animal diversity 23

Phylum Arthropoda Insecta แมลง ๓ 9/24/2020 Animal diversity 24

Phylum Arthropoda Insecta แมลง ๔ 9/24/2020 Animal diversity 25

Phylum Arthropoda . 1 Representative animal : horseshoe crab, spiders, crustacea, insects. 2 Unique Characteristic : - ������� , ����� - �� exoskeleton 3. Level of Organization : Organ grade 4. Symmetry : Bilateral 5. Body Cavity/Coelom : Coelom 6. Digestion : complete digestive tract. 7 Circulation : Open system 9/24/2020 Animal diversity 26

Phylum Arthropoda. 8 Gas Exchange: - Insect : Trachea - Crustacea : Gills - Spider : Book lungs 9. Waste disposal : - Insects : Malpighial tubules - Green gland (Antennal gland( . 10 Nervous system: Cerebral ganglion Ventral nerve cord 11. Reproduction : Sexual ����� , �� Parthenogenesis - 9/24/2020 Animal diversity 27

Phylum Arthropoda. 12 Classification : 3 Subphylum. 1 Subphylum Chelicerata . 1 Class merostomata : �����. 2 Class arachnida : ������ , ��. 2 Subphylum Crustacea. 1 Class Crustacea : ���� , ��������� , ����� . 3 Subphylum Uniramia . 1 Class Insecta : ����. 2 Class chilopoda : ����� Class diplopoda : ������� 9/24/2020. 3 Animal diversity 28

Phylum Echinodermata ดาวทะเล 9/24/2020 Animal diversity 29

Phylum Echinodermata . 1 Representative animal : sea stars, sea urchins, sea cucumber. 2 Unique Characteristic : ������ , ��������� Embryo : : Bilatral 3. Level of Organization Organ grade 4. Symmetry: Adult : Radial (pentaradial( . 5 Body Cavity/Coelom : Coelom 6. Digestion : Complete digestive tract 7. Circulation : Open system (reduced(. 8 Gas Exchange : Dermal gill 9/24/2020 Animal diversity 30

Phylum Echinodermata . 9 Waste disposal : Diffusion 10. Nervous system : Nerve ring (no brain) 11. Reproduction : Sexual ����� 12. Classification : 5 Class. 1. 2. 3. 4. 5 Class Asteroidea : ������� Class Ophiuroidea : ���� Class Echinoidea : ���� Class Holothuroidea : ���� Class Crinoidea : ������ (e) A sea cucumber (class Holothuroidea 9/24/2020 Animal diversity 31

Phylum Echinodermata (a) A sea star (class Asteroidea) (b) A brittle star (class Ophiuroidea) (c) A sea urchin (class Echinoidea) (d) A feather star (class Crinoidea) 9/24/2020 Animal diversity 32