Bellwork: Thurs. April, 21, 2016 1. How can you tell that the flower you dissected yesterday was a monocot?___ _______________________________ 2. __________________ are flowering plants. 3. __________________ reproduce with cones. 4. Organisms that are ____________have the ability to make their own food from sunlight (or other chemical pathways.)  5. Organisms that are ___________ must eat other organisms

Kingdom Animalia

Characteristics of Animals Domain Eukarya Kingdom Animalia Multicellular Heterotrophs (consumers –eaters ) Lack cell walls

Have nervous systems - respond to environment - homeostasis Locomotion = ability to obtain food Most develop from a zygote Single layer of cells surround fluid-filled space forming a hollow ball of cells called a gastrula. http://www.youtube.com/watch?v=lXN_sDnd1ng&feature=related

Body Plans: Symmetry Animals that are irregular in shape are asymmetrical. Animals that are regular in shape are symmetrical. Animal has radial symmetry if it can be divided along any plane, through a central axis, into equal halves. Animal has bilateral symmetry if it can be divided down its length into similar right and left halves forming mirror images of each other.

Which figure has bilateral symmetry? Which has radial symmetry?

~ Protection and Support ~ Not all animals have a skeleton but some have  Exoskeletons: hard, waxy coating on the outside of body protecting internal organs, providing framework for support, and places for muscle attachment. Endoskeletons: support framework within body protecting some organs and a bracing for muscles to pull against.

95% of all animals are in this group The Invertebrates 8 main phyla No backbones 95% of all animals are in this group

Phylum Porifera: the Sponges simplest form of animal life live in water Do not move around - sessile no symmetry Pores (holes) all over body

Sponges are Filter Feeders: filtering particles of food from water using collar cells and then pumps the water out the osculum.

Phylum Porifera~ Examples: Tube Sponge, Glass Sponge, Sea Sponge

Phylum Cnidaria: jellyfish, hydra, sea anemones, and corals 2 different shapes Medusa - like a jellyfish Polyp - like a hydra

Phylum Cnidaria~ Live in water Most have tentacles catch food with stinging cells gut for digesting

Phylum Cnidaria~ Examples - Jellyfish, Hydra, sea anemones, and corals

Phylum Platyhelminthes: Flatworms - Planaria, Tapeworms Flat, ribbon-like body Live in water or are parasites bilateral symmetry Some parasites - tapeworm

Tapeworms are Parasites that lives in intestines of host absorbing food

Phylum Platyhelminthes ~ Liver Fluke parasite lives inside of host

Phylum Nematoda: roundworms – hookworms trichinella Round, tubular body small or microscopic bilateral symmetry have both a mouth and anus Live in water or are parasites

Phylum Mollusca: Mollusks: snails, squid, clams Soft bodies Hard Shells Live on land or in water have a circulatory system and a complex nervous system. Important food source for humans

Phylum Mollusca Class Gastropoda stomach-footed - moves on stomach snails and slugs may have 1 shell

Phylum Mollusca Class Cephalopods “head foot” squids and octopuses internal mantel

Class Bivalves 2 shells hinged together clams, oysters, scallops and mussels

Phylum Annelida – Segmented worms – Earthworms, Bristleworms, Leeches Body divided into segments (sections) Live in water or underground have a nervous and circulatory system

~ Class Earthworms eat soil and breakdown organic matter, wastes provide nutrients to soil Class Bristleworms

Class leeches parasites that feed on blood of other animals Used in medicine too…

Phylum Echinodermata "spiney skin" Hard, spiney skin Live in salt water Radial symmetry endoskeleton

Phylum Echinodermata ~ Sea stars, sea urchins, sand dollars & sea cucumbers

https://www.youtube.com/watch?v=5E4TsarJk7Y

Phylum Arthropoda: most successful & largest group of organisms on earth Body divided into sections/segments Exoskeleton Jointed legs well developed nervous system

Phylum Arthropoda 3 subphylums: Classified into classes according to the number of legs, eyes and antennae they have. Subphylum Chilicerata is divided into 3 classes Arachnida, Merostomata, Pycnogonida

Phylum Arthropoda: Subphylum Chilicerata Class Arachnida: spiders, scorpions, mites & ticks no antennae 4 pairs of legs 2 body regions - cephalothorax & abdomen

Arthropoda ~ Subphylum Chilicerata Class Merostomata: Horseshoe crabs Ancient group of species Changed little over 350 million years Aquatic, mostly found on Atlantic & gulf coasts of United States.

Phylum Arthropoda - Subphylum Chilicerata Class Pycnogonida: Sea spider

Phylum Arthropoda Subphylum - Crustacea Aquatic ones have gills 2 antennae 2 body regions or segmented Shrimp, lobsters, crabs, barnacles, isopods (rolly polly’s)

Subphylum Uniramia: 3 classes Insecta, Chilopoda, Diplopoda

Phylum Arthropoda: Subphylum Uniramia Class Insecta: grasshoppers, ants, butterflies, bees paired antennae 3 pairs of legs 2 body regions - head, thorax & abdomen

Phylum Arthropoda Subphylum Uniramia Class Diplopoda Millipedes segmented animals Have 2 pairs of legs per segment Primarily herbivores & decomposers

Phylum Arthropoda Subphylum Uniramia Class Chiopoda: Centipedes Usually terrestrial carnivores Have 1 pair of antennae Are often poisonous, using modified front claws to immobilize prey

Anatomy of an Ant

~ Phylum Chordata ~ subphylum Vertebrata 5 classes Fish Mammals Reptiles Amphibians Birds

Bellwork: 1. Organisms that are _________________have the ability to make their own food from sunlight or other chemical pathways.   2. Organisms that are ____________________ must eat other organisms Autotroph Heterotroph