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

evolution

chapter 1

QuestionAnswer
what is science? An approach to understanding the natural world
What are the three Domains of organisms? Bacteria, Archaea, Eukarya
Which domains include organisms with prokaryotic cell organization? Bacteria and Archaea
Which two domains are more related to each other then they are to the other and why? Archaea and eukarya because they share a common ancestor that was different from bacteria
What are the characteristics of living things(organisms)? Organized, cellular, reproduce, response to stimuli, acquire & convert energy, growth & development, regulate internal conditions, and evolve.
What are cells? life's fundamental unit of structure and function; the smallest unit of organization that can perform all activities required for life
What is the alternative definition of life? anything that can evolve via natural selection
what are some pro and cons for each definition of life? Characteristics- pros: unifying themes, cons: leaves out certain living things Alternative- pros: heritable characteristics can be passed on to progeny, cons: cell or metabolism not required
List some of the different levels of organization evident in living systems. The biosphere, ecosystems, communities, organisms
Why is it necessary to study how living things work at so many different levels of organization? living organisms can evolve
what is evolution? change in allele frequency in a population over time
what is gene? sequence of DNA that codes for a trait
what is an allele? form of a particular gene
what are the 4 mechanisms that can result in evolution? Natural selection, mutation, genetic drift, and gene flow
Describe how evolution by natural selection occurs. Within a population there is genetic diversity. The environment puts pressure on the population while favoring certain traits. More organisms with these traits survive and pass the trait to their kids. Over time these traits become more common.
What three conditions are required for natural selection to occur? variation, inheritance, and differential reproductive success
What are the different scales of biological studies? molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
What is reduction in biology? Reduction is studying a system by exploring smaller parts and an extremely common scientific approach.
What is system biology? Interaction among components results in an increasingly complex whole; emergent property.
Created by: ammorale
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