ch 15 Animals Flashcards
Main Features of Animals
- Eukaryotes
- multicellular
- some heterotrophs
- obtains energy thru digesting living or dead things
- specialized tissues
- can move
- reproduce sexually mostly
Connective Tissue - Animals
type of complex tissue
- used for transport and structual support
Epithelial Tissue - Animals
type of complex tissu
- covers internal and external organs
ex skin
Muscle Tissue - animals
type of complex tissue
- for body movement
Nervous Tissue - Animals
type of complex tissue
- spinal fluid with nerons attahced
name the ways Sexual Reproduction can happen with animals
- internally - humans egg and sperm
- externally - frogs lay eggs and males fertilize
what is Complete and Incomplete Metaphorsis
- complete = when the juvinile or child version develops to look completely different child to adult
- incomplete = molting, but juvi still looks like adult in way ex snake
how do animals reproduce asexually and which animal does this
- budding thru mitosis
- hydras
Parthegenesis
unfertilized egg develops into FEMALE offspring
Asymmetrical Organism
organism has no pattern when cut in any plane
Radial Symmtry
even when cut down any plane
Bilateral Symmetry
only even when cut down the middle or one plane
Diploblastic
organisms with 2 germ layers
Triploblastic
organisms with 3 germ layers
how many tissue layers do Radially symmtrical organism have
two - diploblasts
how many tissue layers do Bliateral organisms have
three - Triploblkasts
Endoderm
inner most germ layer
Mesoderm
middle germ layer
- only in Triploblasts
Extoderm
outer most germ layer
Coelum
body cavity in Triploblasts
Acoelumate
Triploblasts with no body cavity (coelum)
Eucoelomates
Triploblasts with TRUE COELUM all over the mesoderm
Protostomes
organisms first hole (Blastopore) is the mouth
Deuterostomes
organisms first hole is the anus
some characteristics of Sea Sponges
- Phylum Porifera
- lives in aquatic, marine (salty) areas
- Asymmetrical
- NO GERM LAYERS
- has Osculum where water flows thru
- invertebrate
Choancytes
flat inner cells in SPONGES for feeding
some characteristics of Jellies and Hydras
- Phylum Cnidarian
- lives in ONLY marine areas
- Radial Sym
- Diploblasts - 2 germ layers
- invertabrates
Jelly Cnidocytes
specialized cells that are used to immobolize prey
describe Medusa Jelly type
the typical looking jelly
- moves
- tentacles coming out of hed
describe Polyp Jelly Type
- odesnt move
- tentacles stick up
what is the phylum of Flatworms
Phylum Platyhelminthes
some characteristics of Platythelminthes
- Triploblasts
- bilateral
- protostomes
- acolelumates
what phylum are roundworms in
Phylum Nematoda = menatodes
- nema the roundworm
some characteristics of roundworms
- triploblasts
- bilateral
- protostomes
- PSEUDOCOELUMATE
what does a round worm look like
- tube like but TAPERED at end
what phylum are insects in
Arthropoda(s)
describe characteristics of Arthropods
- triploblasts
- bilateral
- protostomes
- invertebrates
- incomplete metaphorsis
- appendages r jointed
- body is segmented
what phylum do octopi and sea snails belong in
Molluska
some characteristics of Moluska
- triploblasts
- bilateral
- protostomes
- invertebrates
- MUSCULAAR FOOT
Visceral Mass - Mollusks
contains the organs
Dorsal Mantle - Molluska
flap of tissue covering visceral mass
Mantle - Mollusks
secrets calcium and a carbonate chell
characteristics of Annelids
- segmented worms
- in marine areas
- triploblasts
- bilateral
- protostomes
- invertebrates
ex earth worms. leeches
Metamerism - Annelids
modificatiosn happen separately in each of the segments and perform different fucntions
what phylum are sea stars in
Echinoderms
characteristics of echinoderms
- bilateral as CHILD
- pentearadial (5 way) as ADULT
- DEUTEROSTOMES (first hole is anus)
- calcareulos endoskeleton
- has water vascular system as their circulatroy system
what phylum are mammals, reptiles, fish, birds and amphibians in
PHYLUM CHORDATA
CHORDATESS
DESCRIBE the general charcteristics of Chordates
- triploblasts
- bilateral
- deuterostomes
- VERTEBRATES (hav back bone)
Notochord
- in Chordates becomes the vertebrae
Dorsal Hollow Nerve Chord
- in Chordates, becomes spinal cord and brain
which phylum has the post anal tail
chordates
which chordates are Invertabrae
Sea SQUIRTS
examples of jawless and jawed fish
jawless = hagfish, lampreys
jawed = ray-finned fish, lung fish like EELS, SALMON
what are reptilians scales made of
keratin and wax lipids
Endothermic - Birds
they generate their own body heat
what are the unique characteristics that Mammals have
- hair
- MAMMARY GLANDS to secrete milk
- hair to insulate heat and create sensations
