Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chapter 23

"Systematics, Phyloginies, and Comparative Biology"Evolutionary Biology, BIOL152

QuestionAnswer
ancestral similarity among species that is inherited from the most recent common ancestor of an entire group
derived similarity that arose more recently and is shared vy only a subset of the species
taxa species or higher level groups such as genera or families
polarize to determine whether particular character states are ancestral or derived
outgroup a soecies or group of species that is closely related to, but not a member of, the group under study
cladogram depicts a hypothesis of evolutionary relationships
clade species that share a common ancestor as indicated by shared derived characters
synapomorphy a derived character shared by clade members
plesiomorphies ancestral states
symplesiomorphies shared ancestral states
homoplasy a shared derived character state that has not been inherited from a common ancestor exhibiting that character state
principle of parsimony favors the system with less assumptions
molecular clock the rate of evolution of a molecule is constant through time
classification placing species in groups
taxonomy science of classifying living things
monophyletic includes the most recent common ancestor of the group and all of its decendants
paraphyletic includes the most recent common ancestor of the group but not all of its ancestors
polyphyletic does not include the most recent common ancestor of all the members of a group.
Phylogenetic species concept (PSC) the term species should be applied to groups of populations that have been evolving independantly of other groups of populations
species richness the number of species in a clade
systematics
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards