Term
|
Definition
*unsegmented worms
*PSEUDOcoelom |
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Term
|
Definition
*body has head and trunk regions
*antenna |
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|
Term
|
Definition
| millipedes and centipedes |
|
|
Term
|
Definition
(spiders, ticks, scorpions)
*lack antenna
*chelicerae=appendages near the mouth |
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Term
|
Definition
*head, thorax, abdomen
*3 pairs of walking legs
*most species have wings |
|
|
Term
|
Definition
(shrimp, lobster, crabs, barnacles)
*carapace=section of exoskeleton that covers/protects the cephalothorax and mandibles
*2 pairs of antenna's
*eyes on stalks |
|
|
Term
|
Definition
| choanoflagellates (closest living relatives of animals |
|
|
Term
|
Definition
1.multicellular
-epithelial tissue
2.organisms don't always evolve simple->complex some downgrade |
|
|
Term
|
Definition
1. filter/suspension
2.deposit
3. mass
4. fluid |
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|
Term
|
Definition
feed on eachother
-eat dead matter of dieing organisms |
|
|
Term
| what are the first animals in the fossil record? |
|
Definition
|
|
Term
|
Definition
(sponges)
benthic
asymmetrical
specialized cell types and epithelial tissue
filter feeders |
|
|
Term
|
Definition
(jellyfish, corals, anemones)
reef building corals secrete calcium carbonate
radially symmetric
cnidocyte= used to capture prey
mass feeders
move by jet propulsion |
|
|
Term
|
Definition
(comb jellies)
small species diversity
no coeolm
planktonic=opposite of benthic
mass feeders |
|
|
Term
|
Definition
living near the surface/ shallow waters
-opposite of benthic |
|
|
Term
|
Definition
small worms that live in mud and sand
NOT bilaterian bc lack a head
don't have a specialized nervous system |
|
|
Term
| most important found fossil on earth |
|
Definition
|
|
Term
| 4 phylum of deuterostomes |
|
Definition
1. echinoderms
2. hemichordata
3. xenoturbelida
4. chordata |
|
|
Term
| 4 features that define chordata |
|
Definition
1. pharyngeal gill slits
2. notocord
3. post anal tail
4. dorsal hollow nerve cord |
|
|
Term
|
Definition
| supportive, flexible rod that runs the length of the chordate body |
|
|
Term
|
Definition
| allows and signals the organism to move |
|
|
Term
|
Definition
|
|
Term
|
Definition
fish like
found buried in the sand
come up to filter feed using gill slits |
|
|
Term
|
Definition
| pieces of tissue that become the vertebrae |
|
|
Term
|
Definition
1. urochordates (tunicates (sea squirts))
2. cephalochordates (lancelets)
3. vertebrates |
|
|
Term
|
Definition
first 4 limbed vertebrates and their descendants
(amphibians, reptiles, birds, mammals) |
|
|
Term
| 2 distinguishing traits of VERTEBRATES |
|
Definition
1. vertebrae - protects the spinal cord
2. cranium- case that encloses and protects the brain
**ALL HAVE CRANIUM, NOT ALL HAVE VERTEBRAE |
|
|
Term
|
Definition
1. forebrain- smell
2. midbrain- vision
3. hindbrain- balance and hearing |
|
|
Term
|
Definition
FOUND in canada
(formed during CAMBRIAN EXPLOSION)
most famous- exeptional preservation of soft part of fossils |
|
|
Term
|
Definition
|
|
Term
|
Definition
| species that give live birth |
|
|
Term
|
Definition
short gestation period
offspring in a pouch
(kangaroos, koalas) |
|
|
Term
|
Definition
|
|
Term
|
Definition
(modified lung)
gas filled and helps the fish from sinking |
|
|
Term
| linked ancestor to the tetrapods |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| feature that helps reptiles on land |
|
Definition
|
|
Term
|
Definition
| DO NOT used internal heat to generate body temperature |
|
|
Term
|
Definition
1. human intervention
2. extinction |
|
|
Term
|
Definition
| study of relationships living organisms have with each other |
|
|
Term
| main levels of ecology (5) |
|
Definition
1. individual
2. population= group of individuals of same species
3. community= all living species in an area
4. ecosystem= all living things in a specific area
5. biosphere= all of earth |
|
|
Term
|
Definition
| large geographical area of distinctive plant and animal groups |
|
|
Term
| factors that define a biome |
|
Definition
1. climate
2. geography of an area |
|
|
Term
|
Definition
| study of nature and status of earths biodiversity |
|
|
Term
|
Definition
| variety of all forms of life |
|
|
Term
| most diverse animal group |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| coelom between outer body wall and GI tract |
|
|
Term
| outgroup to the animal kingdom phyla |
|
Definition
|
|
Term
|
Definition
abrupt appearance of wide range of organisms
530 mya |
|
|
Term
|
Definition
|
|
Term
| 5 key adaptations of vertebrates |
|
Definition
1. endothermic
2. lungs and limbs
3. water tight skin
4. jaws
5. endoskeleton |
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