Save
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

Part 1 Vocabulary

TC3 BIOL 105 Final Exam (ch. 19-22)

TermDefinition
Paleontology The study of fossils; was developed in large part by Georges Cuvier
Artificial Selection The selective breeding of domesticated plants and animals to encourage the occurrence of desirable traits
Polyploidy A condition that occurs from accidental cell division, resulting in extra sets of chromosomes
Natural Selection Individuals with certain traits tend to survive longer and reproduce more successfully
Molecular Clock A model that helps estimate the time required for evolution change, based on the observation that some regions of genomes evolve slowly.
Relative Fitness The contribution an individual makes to the gene pool of the next generation relative to the contribution of other individuals
Homologous structures The underlying skeletons of the arms, forelegs, flippers, and wings of different mammals represent variations on a structural theme to demonstrate their common ancestors
Vestigial structures Remnants of features that served a function in the organism's ancestors
Hybrid zone A region in which members of different species meet and mate, producing some offspring mixed of ancestry
Prezygotic Barrier A factor that blocks fertilization from occurring
Postzygotic Barrier A factor that prevents the offspring of different parent species from developing into viable, fertile offspring
Heterozygote advantage Greater reproductive success of heterozygous individuals compared with homozygotes; tends to preserve variation in a gene pool
Allopatric speciation Gene flow is interrupted when a population is divided into geographically isolated subpopulations
Sympatric speciation Even though living in the same area, genetic mutations, habitat changes, or sexual selection of mates leads to new species formation.
Created by: PRO Teacher etucci
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