Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
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

Evo&Eco exam 1

Malthus published "essay on the Princip;e of population" in 1798
Lamarck Published his hypothesis of evolution in 1809
Cuvier Published his extensive studies of vertebrate fossils
Lyell published principles of geology in 1830
Wallace while studying species, he sent Darwin his hypothesis of natural selection in 1858
Darwin wrote his essay on descent with modification; book "Origin of species" was published in 1859
4 main tentants of natural selection (write it down) Individuals vary greatly in their traits; natural variation within a species; variation in traits is inherited; acquired traits cannot be inherited
genetic drift chance events cause allele frequencies to fluctuate randomly from one generation to the next
founder effect few individuals become isolated from larger population, smaller groups establishes new population--> gene pool of new population differs from source population
bottleneck effect sudden change in environment drastically reduces size of population, surviving alleles result of chance alone
mutation chance in nucleotide sequence in an organisms DNA (source of genetic variation)
gene duplication can result in expanded genome (source of genetic variation)
sexual reproduction existing genes arranged in new ways;crossing over/fertilization (source of genetic variation)
true mutation, gene duplication and sexual reproduction are sources of genetic variation (T/F)
true in a population that is not evolving, allele and genotypic frequency will remain constant from generation to generation (T/F)
true no selection, no mutation, no migration, large population and random mating are the assumptions of Hardy-Weinberg (T/F)
intrasexual selection male-male competition; harem defense
intersexual selection mate choice; usually occurs within females; depends on males appearance or behavior
tentative meaning science cannot prove anything. There will always be information that will make us change our mind. We use science to collect evidence
Objective removes an bias view from the scientist
testable you can test science in any way or to support evidence
observation some aspect of the natural world that interest you
hypothesis a plausible explanation, taking into account what is already known
prediction tells what to expect if you do the experiment. "If I do X, then I will see Y"
experiment/results set up the conditions to test the prediction
conclusion the results can support the hypothesis, falsify the hypothesis or be inclusive
Created by: Miera