Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.

Remove ads
Don't know
Know
remaining cards
Save
0:01
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:
Retries:
restart all cards




share
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

Natural Selection

QuestionAnswer
a characteristic or change that allows an organism to blend in or survive within their environments adaptation
an adaptation that allows an organism to blend in with its surroundings camouflage
resemblance of one species to another species mimicry
process by which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those that do not have the variations. natural sellection
slight difference in an inherited trait of individual members of a species variation
the actions of an animal allow it to survive behavioral adaptation
shape, color, and other physical characteristics that allow an organisms to survive in its environment structural adaptation
How does mater energy move in an ecosystem? in one direction
How do materials such as carbon, nitrogen, and water move through an ecosystem? in a cycle
the What is the first organism consumed in food web? producer
non-living factors like soil, water, climate abiotic factors
living organisms like plants, animals, and bacteria biotic factors
Darwin concluded that organisms on the Galapagos Island had different variations
Differences between members of the same species are called variations
species is a group of similar organisms that can mate and fertile offspring
structures that related species have inherited from a common ancestor homologous structures
humans and bats are found to have a common ancestors the homologous structures to arms bats' wings
natural selection leads to evolution helpful variations add up among the surviving members in a population
two organisms look very very similar during their early stages of development is evidence common ancestor
fossils form from dead organisms becomes buried in sediment
a slight change in a rabbit's ability to hear is predators better to help it survive adaptation
what are fossils preserved remains or traces of organisms that lived in the past
natural selection is affected by these traits that are different in members of the same species variations
states that species evolve slowly over a relatively slow time evolution
organisms that usually mate and produce fertile offspring species
a new species evolves from an existing species natural selection
living factors biotic
non-living factors abiotic
actions or behaviors that allow an organism to survive behavioral adaptation
energy flows in one direction
hibernation is an example behavioral adaptation
allows an organism to blend in with their surroundings camouflage
color, shape, and size are physical characteristics that allow an organism to survive structural adaptation
when a species resembles another species to survive as a defense mimicry
climate, soil, sand , water, sunlight abiotic factors
all the populations of different species that live in the same area at the same time community
the struggle in a community for resources such as food and shelter competition
what a species does to survive niche
place within an ecosystem where an organism lives habitat
all of the organisms that live in an area at the same time with living and non-living parts of the environment ecosystem
all the organisms of the same species that live in the same area at the same time population
consumers that eat other consumers carnivores
consumers that eat producers herbivores
consumers that eat dead organisms detritivores
consumer that eat producers and consumers omnivore
made up of all the fossils ever on Earth fossil record
preserved evidence pf the activity of an organisms trace fossil