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

Ecology

Basic, Beyond Basic and Lab Terms

TermDefinition
species organisms that can mate with each other and produce fertile offspring [B]
population a group of organisms of one species living in one area at one time [B]
community multiple populations living in one area [B]
ecosystem a community and the abiotic factors in the area [B]
niche the role a species plays in an ecosystem, including where it lives and what it eats [B]
food web a model, using arrows, of the consumer interactions in a community [B]
producer impact change in the producer (mainly plants) level can affect the # and size of other trophic levels [B]
biotic and abiotic 1) living (or once living) factors 2) non-living (were never alive) factors [B]
dynamic homeostasis constant movement (change) of a factor toward a stable target point [B]
symbiosis interactions between organism of two species, including mutualism and parasitism [B]
energy pyramid a model of 10% energy flow through consecutive trophic levels [B]
exponential and logistic population growth 1) reproduction without restraints 2) population exceeds resource availability (carrying capacity) [B]
free energy this available energy (G) is used to maintain organization, growth and reproduction which can effect individuals, populations and ecosystems [BB]
matter cycles various nutrient (carbon, water, nitrogen, etc.) circuits in which matter is converted between biotic and abiotic aspects of an ecosystem [BB]
keystone species A species that is of exceptional importance in maintaining the species diversity of a community since many members of a food web rely on the species [BB]
predator-prey relationships the interaction between a predator and prey population cause their population sizes to increase and decrease in response to each other [BB]
stability (ecological) the ability of a food web to remain relatively unchanged is affected by interactions with biotic and abiotic factors (and biodiversity) [BB]
biodiversity variation in life (including variation in species, ecosystems and genetics) [BB]
communication exchange of information (sound, visual, chemical, etc.) in response to internal and external stimuli [BB]
innate behavior actions that are not learned by a behavior, but are inherited (instinctual) [BB]
environmental cues signals that trigger changes in behavior (hibernation, migration, courtship, etc.) [BB]
cooperative behavior interactions within or between populations that contribute to the survival of the populations (mutualism, resource partitioning, etc.) [BB]
human impact the influence that human population growth and actions has led to habitat destruction, reduced population and, in some cases, extinction for other species [BB]
species distribution the geographical areas that a species lives (changes over time as influenced by many factors) -- also consider abundance [BB]
primary productivity the rate at which light energy (captured during photosynthesis) is converted into chemical energy by plants (and other autotrophs) in an ecosystem (can also include chemosynthesis) [Lab: Energy Dynamics]
secondary productivity the rate at which consumed food is converted into new chemical energy by consumers in an ecosystem [Lab: Energy Dynamics]
gross productivity the rate at which energy is taken in and converted to ALL forms of chemical energy, including biomass, cellular respiration and waste [Lab: Energy Dynamics]
net productivity the rate at which energy is taken in and converted to the chemical energy found in biomass, excluding cellular respiration and waste [Lab: Energy Dynamics]
wet and dry mass 1) the mass of an organism including its biomass and water 2) the biomass of an organism, taken after the organism has been dehydrated [Lab: Energy Dynamics]
biomass the part of gross productivity that includes the dry mass of an organism which (when divided by time) can be used to calculate net productivity [Lab: Energy Dynamics]
kcal of respiration the part of gross productivity that is used to convert organic compounds into ATP for movement, growth and reproduction [Lab: Energy Dynamics]
kcal of waste the part of gross productivity that is released from the body without being utilized [Lab: Energy Dynamics]
taxis a movement directly toward or away from a stimulus [Lab: Behavior]
kinesis a change in the rate of movement in response to a stimulus [Lab: Behavior]
chi-square test a statistical test for categorical data which can determine if there is a significant difference between the expected and observed results [Lab: Behavior]
null hypothesis a hypothesis that states there is NOT a significant difference between the expected and observed results [Lab: Behavior]
behavior All of the acts an organism performs including, seeking a suitable habitat, obtaining food, avoiding predators, and seeking a mate and reproducing. [Lab: Behavior]
degrees of freedom used in the chi-square test, it is the number of categories minus 1 [Lab: Behavior]
choice chamber A device that offers organisms two or more contrasting environments and allows them to move freely into the one they prefer [Lab: Behavior]
significant difference a large difference between the expected and observed results which can not be attributed to random chance as determined by the chi-square test [Lab: Behavior]
endotherm animal that uses metabolic energy to maintain a constant body temperature, such as a bird or mammal [BB]
ectotherm animal such as a reptile, fish, or amphibian, that must use environmental energy and behavioral adaptations to regulate its body temperature [BB]
phototropism growth of a plant shoot toward (or away from) light [BB
photoperiodism physiological response to day length, such as flowering in plants [BB]
Created by: cfigueiredo
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