Diversity Of Animalia (Ch 27) Flashcards
describe eukarya
eukaryotic
Multicellular
Heterotrophic (can’t produce food through photosynthesis)
Have a nervous system
6 types of Phyla of Interest
Phylum Cnidaria
Phylum platyhelminthes
Phylum Nematoda
Phylum Annelida
Phylum Arthropoda
Phylum Chordata
cnidaria examples
jelly fish and corals
platyhelminthes examples
flatworms
nematoda examples
roundworms
annelida examples
leech (segmented worms)
phylum arthropoda examples
Insects, spiders, hairy, scary
Phylum Chordata examples
Vertebrates, mammals, fish
characteristics that allow cnidaria
central mouth
Tentacles
cnidocytes are __
Cnidocytes
Tentacles sting prey and push food to mouth
3 types of Platyhelminthes (flatworms)
planarians and flukes and tapeworms
what are planarians
Aquatic, free living (feed on its own)
what are flukes
=Parasites
=Cause many diseases
Ex: blood fluke disease (common in Africa, South America) = live in blood vessels
=Symptoms - abdominal pain and anemia
what are tapeworms
parasites
other word for nematoda (roundworm)
hookworm
describe nematoda
Non segmented
Free living + parasites of plants and animals
Ex: ASCARIS SP
males: small and thin
Female: thicker
body of annelida resembles a
fused rings
purpose of segments in annelida (segmented worms)
Segments give mobility and flexibility into soil
3 types of annelida
earthworm, clam worm, leech
earthworm
Tube shaped, segmented
Live in soil
Feeds on live and dead organic matter
clam worm
Tube shaped, segmented
Aquatic
Feeds on live and dead organic matter
leech
Segmented worms
Hirudo medicinal is
Hirudin- prevents blood clot
arthropoda is the __ phylum, and most __
largest, diverse
4 types of arthropoda
1) Insects (bees, beetles, flies)
2) Arachnids (spider, scorpions, ticks)
3) Myriapods (centipedes and millipedes)
4) Crustaceans (crabs, lobsters, shrimp)
why are arthropoda so successful
1) Have external skeleton (exoskeleton)
=Chitin: polysaccharide
=Molting: process of growing and leaving cytoskeleton
2) Jointed appendages for locomotion, feeding, defense, sensing environment
5 distinctive features of Chordata
1) Dorsal, hollow cord
2) Notochord (flexible do b/w digest and nerve cord)
3) Pharyngeal gill lists
4) Post-anal tail
5) Iodine binding glands in humans (thyroid)
2 groups of invertebrate chordata
Tunicates
Lancelets
5 common classes of phylum chordata (vertebrate)
- fish
- amphibians
- reptiles
- aves (birds)
- mammalian (mammals)
3 categories that fall under the “fish” class
Class Agnatha (jawless fish, like lampreys) **
Class Chondrichthyes (sharks and rays)
Class Osteichthyes (bony fish, goldfish)
what does class Agnatha resemble
fish
how does class agnatha suck blood
uses sharp teeth and rasping tongue to attach to body of fish
Fish that survive the attack left with a large open wound and become infected and lead to death
characteristic of mammals
hair + mammary glands
3 major groups of mammals
- monotremes
- marsupials
- Eutherians (placentals)
describe monotremes
lay eggs
= Female lay eggs
= Ex: echidnas + platypus
describe marsupials
- have pouch
- Brief gestation period (embryo nourished by placenta)
- Give birth to tiny offspring that completes development that attached to mothers nipples
- Nursing young in pouch (marsupium)
ex: kangaroo
what does eutherians (placentals)
During gestation, embryos are nurtures inside mother by placenta
(ex: cat, dog, lion)
