What are the two major groups of dinosaurs and what is the trait used to differentiate
them
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Ornithischia "bird hipped"Saurischia "lizard hipped"
Why were tunicates only recently identified as being more closely related to
vertebrates than amphioxus (lancelets)?
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Their close relationship to the vertebrates is shown by the fact that during
their mobile larval stage, they possess a notochord or stiffening rod and
resemble a tadpole.
,Angiosperms
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Over 250,000 species (most diverse by far)
Novel traits
•Flowers (Key Innovation?)
Protective/dispersal structures for seeds
•Better vascular tissues
Hominids
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phylogeny of primates, patterns of gene flow among Homo, implication
from RNA study
molluscs
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85,000 species
550 million years ago
bilateral symmetry, some produce venom, sexual reproduction (can change
sex)
,4 major groups of reptiles (extant and non-avian) and general reptile characteristics/
patterns of diversity
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crocodilians, turtles, lepidosaurs, tuatara
sporophyte
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Diploid, or spore-producing, phase of an organism
amount of this increases as time goes on compared to gametophytes,
which decrease as time goes on
Hagfish
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marine, scavengers of dead and dying fish, protective slime, skull but no
vertebrae or jaws
Bacteria vs. archaea
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, Bacterial cells walls contain peptidoglycan
Archaeal cells walls do not
organization
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one or more cells
Traits of amphibians and links to an aquatic habitat
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skull, vertebrae, jaws, tetrapods. Still restricted to water for reproduction
(think frogs needing to lay eggs in water for the tadpoles to hatch)
Lampreys
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mouth morphology: parasitic with developed teethskull, but no vertebrae
or jaws
7 criteria for life
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them
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Ornithischia "bird hipped"Saurischia "lizard hipped"
Why were tunicates only recently identified as being more closely related to
vertebrates than amphioxus (lancelets)?
Give this one a try later!
Their close relationship to the vertebrates is shown by the fact that during
their mobile larval stage, they possess a notochord or stiffening rod and
resemble a tadpole.
,Angiosperms
Give this one a try later!
Over 250,000 species (most diverse by far)
Novel traits
•Flowers (Key Innovation?)
Protective/dispersal structures for seeds
•Better vascular tissues
Hominids
Give this one a try later!
phylogeny of primates, patterns of gene flow among Homo, implication
from RNA study
molluscs
Give this one a try later!
85,000 species
550 million years ago
bilateral symmetry, some produce venom, sexual reproduction (can change
sex)
,4 major groups of reptiles (extant and non-avian) and general reptile characteristics/
patterns of diversity
Give this one a try later!
crocodilians, turtles, lepidosaurs, tuatara
sporophyte
Give this one a try later!
Diploid, or spore-producing, phase of an organism
amount of this increases as time goes on compared to gametophytes,
which decrease as time goes on
Hagfish
Give this one a try later!
marine, scavengers of dead and dying fish, protective slime, skull but no
vertebrae or jaws
Bacteria vs. archaea
Give this one a try later!
, Bacterial cells walls contain peptidoglycan
Archaeal cells walls do not
organization
Give this one a try later!
one or more cells
Traits of amphibians and links to an aquatic habitat
Give this one a try later!
skull, vertebrae, jaws, tetrapods. Still restricted to water for reproduction
(think frogs needing to lay eggs in water for the tadpoles to hatch)
Lampreys
Give this one a try later!
mouth morphology: parasitic with developed teethskull, but no vertebrae
or jaws
7 criteria for life
Give this one a try later!
