biology- chapter 15

focuses on the different phylums within the animal kingdom

zoology

ventral

body parts near the belly of the goat

anterior

front side of goat

dorsal

refers to parts near back/topside 

diploplasts

has 2 tissued layers during development

triploblastic

3 tissued layers during development

endoderm

intermost germ layer in an embryo

mesoderm

middle layer in an embryo

ectoderm

outermost layer in embryo 

mammals

hair and mammary glands

marsupials

subgroup of mammals, kids who mature inside their pouch

reptiles

1st group go amniotes, terrestrially adapted eggs, cold blooded

amphibians

cold blooded, live partly on land and partly in water, metamorphosis

gastropods

has a stomach foot and coiled shell except for slugs ( snail, slugs)

sharks

skeletons made of cartilage, jaws

sponges

member of phylum Porifera, aquatic and Most species are marine, asymmetrical

posterior

near the tail of the goat

3 types of body symmetry

asymmetry, radial, bilateral

Cnidarians

soft-bodied invertebrates, such as jellyfish, corals, and sea anemones, radial symmetry