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

Evolution Exam

QuestionAnswer
All organisms have adaptions. What does the term adaption mean. Changes that increase the animals chance of survival.
Give two examples of behavioral adaptions 1. Moving slowly to avoid predators 2. Some collect food and store for future use.
Give two examples of structural adaptions. 1. Camouflaged 2. Animals that resemble objects
What is evolution Gradual development of different species from a common ancestor.
What was Lamarks theory of evolution. Organs are improved if used more, and this is passed on through reproduction to the next generation.
Is Lamarks theory supported? No, aquired characteristics cannot be inherited
What was Charles Darwin's theory? Natural Selection, the animals with the most suited characteristics would pass down these characteristics to their offspring.
Why did the virus, Myxamotosis, only get rid of the rabbit problem for a limited amount of time? Because the animals that were immune to the virus passed down that characteristic to their offspring and they reproduced.
What do the terms "Selected for" and "Selected against" mean? "Selected for": Characteristics that allow the organism to survive Selected Against: Characteristics that do not help the organism to survive.
What does the term Variation mean? There needs to be the same species of animals with the different genes, or else there won't be enough change if the animals environment changed drastically.
What is speciation? Formation of a new species
How do we know when two animals are different species? They have two different types of genes
Explain the three steps involved in speciation 1. Geographic Isolation 2. Natural selection at work 3. Reproductive isolation.
Created by: fadedcreed22
Popular Science 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