Vocabulary
Analyzing
Characteristics
SURPRISE
100
a single organism from which other organisms have descended
ancestor
100
What characteristic separates platypus and zebras?
placenta; live birth
100
Evidence for evolution reveals that closely related organisms have many _____________ characteristics.
shared
100
on a cladogram, branches that are ____________ are always more closely related than the branches that are ___________.
closer together, farther apart
200
a branching diagram that depicts the evolutionary relationships among species
cladogram
200
How many organisms would be in this cladogram?
7
200
organisms that are farther on the left of a cladogram have __________ shared characteristics than organisms that are farther on the right.
less
200
Which organism is the most primitive?
lamprey
300
characteristics are the __________ of an organism or species
features or qualities
300
Which characteristic(s) do a tiger and lizard have in common?
five fingered hand/claw
300
the organism on the far left of a cladogram is going to be the most _________
primitive
300
True/False: Shared characteristics can exist among organisms that belong to different species.
True
400
DAILY DOUBLE! WORTH 800 POINTS!
What 3 pieces of evidence do we use to support evolution?
-fossils
-embryology
-comparative anatomy
400
Which organism is most closely related to the rodent?
gorilla
400
In order for a characteristic to be used in a cladogram, what must be true?
it must be common to all organisms above a particular point
400
Give a characteristic that chimps and mice have in common, but that chimps and pigeons do not.
chimps and mice have fur and mammary glands
500
Define species.
a group of organisms that can mate and produce offspring that can mate
500
Which 2 organisms are most closely related?
earth worm and fruit fly
500
DAILY DOUBLE! WORTH 1,000 POINTS!
What are the 2 types of shared characteristics?
-characteristics that remain in the common ancestor and the modern organism
-characteristics that are new and have been modified from what was found in the common ancestor
500
Which 2 organisms are most closely related? BE CAREFUL!!!
salamander and lizard