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

Dat bio

evolution

QuestionAnswer
change in genetic makeup of a population over time evolution
_____ have same origin and similar structure homologous structure
_______similar function and structure with different origin underwent convergence analogous structures
closer related animals are the similar their _______ genetic info
use or disuse or inheritance of acquired characteristics Lamarckian evolution (discredited)
how was Lamarckian theory discredited only changes in dna of sex cell can be inherited
wats darwins theory pressures in the environmet select for the most fit to survive and reproduce
____ sum total of all alleles in a population gene pool
gene frequency allele/ tot allele relative freq of allele in a pop
p freq of dominant allele
q freq of recessive allele
conditions for hardy weinberg large pop, no mutation, random mating, no migration
what is hw equilibrium determines gene freq for non evolving pops
p^2 freq of dominant homozygotes
q^2 freq of recessive homozygote
2pq freq of heterozygote
assortive mating non random mating; mate selected based on certain crierias; dont change allele freq
_______ increases favorable genes in gene pool; deviation from HW natural selection
_____ change allele frequ in a pop; dev from HW mutation
____ change in gene pool due to random chnace; dev from Hw gene drift
_______ loss or gain o genes b/t pops' dev from HW geneflow/ migration
_____ small local population deme
imprints in fossils organism footprint
petrification minerals replacing org cells
molds in hollow space as animal decay
cast minerals deposited in molds
directional selection shift to one extreme
disruption selection shift towards variants of either extrmes and form 2 sub pops
sexual selection is _______ nat selection opposite
stabilizing selection favors the intermediate and disfavoring the extremes
Created by: smuttz
Popular DAT 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