Animals Quarter 4 Week 4

Intro to Animals Multicellular, heterotrophic, eukaryotic organisms. Most have specialization—adaptation of a cell for a particular function Most reproduce sexually

Animals Most move in some way at some point in their life (sessile—does not move, ex. Sponges are sessile as adults) –Movement is due to the relationship between two unique (animals only) types of tissue— nervous and muscular tissue Originated from the sea: probably evolved from loosely connected, flagellated protists.

Phylum Porifera : Examples—

Phylum Porifera What is their symmetry? Asymmetrical Where do they live? Water How do they travel? Sessile How do they feed? Filter How do they reproduce? Most sexually Define: regeneration— regrowing a part that has broken off.

Phylum Cnidaria : Examples—

Phylum Cnidaria What is their symmetry? radially Where do they live? ocean How do they travel? Swim as adult How do they feed? Capture prey How do they reproduce? Both sexually and asexually

Flatworms Examples

Flatworms What is their symmetry? bilateral Where do they live? Moist area or water How do they travel? Crawl, swim How do they feed? Parasitic and feeding tube How do they reproduce? hermaphrodites

Phylum Mollusca : Examples—

Phylum Mollusca What is their symmetry? bilateral Where do they live? Damp places or water How do they travel? Swim, crawl How do they feed? Filter feeder, capture, radulas How do they reproduce? Sexually

Phylum Annelida : Examples—

Annelida What is their symmetry? bilateral Where do they live? Almost everywhere except frozen soil How do they travel? Shortening and lengthening its body How do they feed? Mouth to gizzard How do they reproduce? hermaphrodites

Arthropoda ArachnidCrustaceansinsects

Phylum Arthropoda : What are 3 classes? Insects, crustaceans, arachnids What is their symmetry? bilateral Where do the live? everywhere How do to they feed? Mandibles, Chelicerae, sucking How do the Reproduce? sexually Define: exoskeleton— hard outer covering Define Metamorphous series of changes from juvenile to adult

Phylum Chordata Vertebrates are a subphylum of Chordata; they have backbones --classes of vertebrates include: fish (several types), amphibians, reptiles, birds, & mammals.

Phylum Chordata At some stage in life all chordates have: A notochord Dorsal hollow nerve cord Pharyngeal pouches (gills) Post-anal tail

Class Fish Examples: Chondrichthyes and Osteichthyes

Fish What are the differences in each class? What are examples? Where do they live? Water How do the reproduce? Sexually, external fertilization How many chambers do their hearts have? 2

Amphibia Examples

Amphibians Where do they live? Double life part water part land How do they reproduce? Sexually, eggs need water, external fertilization What does Amphibian mean? Double life How many chambers is in their hearts? 3

Reptilia Examples

Reptiles What are the major Characteristics? Scales, legs for walking, sharp claws Where do they live? land How do they reproduce? Sexual, eggs don’t need water, internal What does Exothermic mean? Can’t maintain body temperature Define Amniotic egg and explain the advantage. How many chambers do their hearts have? 3 to 4

Aves (bird) Examples:

Birds What are the major Characteristics? Where do they live? Everywhere How do they reproduce? Sexual, internal What does Endothermic mean? Maintain body temperature How many chambers do their hearts have? 4

Mammalia Examples Marsupila placental mammal monotremes

mammals What are the major Characteristics? Endothermic, hair, milk glands, diaphragm, specialized teeth, developed brains Where do they live? everywhere How do they reproduce? Sexually, internal How many chambers do their hearts have? 4