Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
inherit
|
receiving of parents' genes
|
|
|
mutation
|
a change in an organism's genes
|
|
|
structural adaptation
|
a body part that helps the organism survive
|
|
|
behavioral adaptation
|
inherited behavior that helps animals survive
|
|
|
pesticide
|
poisons that kill insects
|
|
|
extinct
|
when there are no members of a kind of organism left alive
|
|
|
how are ecosystems always changing?
|
by organisms, wind, water, or other parts of the environment
|
|
|
are all changes to an ecosystem harmful?
|
no
|
|
|
example of how people change ecosystems
|
build houses, clear forests, throw out trash, bring in new plants and animals
|
|
|
what plant can dominate forest floor, by preventing other plants from getting water and sunlight?
|
garlic mustard plant
|
|
|
landfill
|
pile of garbage that is eventually covered with soil and grass
|
|
|
today, what do liners in landfills do?
|
seal off the garbage to keep harmful chemicals from getting into the ground.
|
|
|
acid rain, how does it change ecosystems?
|
rain that has absorbed certain kinds of pollutants.
it pollutes soils and lakes |
|
|
T/F Ecosystems can be changed by humans as well as forces of nature.
|
TRUE
|
|
|
T/F When people introduce new animals or plants into an ecosystem, it changes.
|
TRUE
|
|
|
T/F The garbage in landfills decays quickly.
|
FALSE
|
|
|
T/F Acid rain is caused by water pollution.
|
FALSE
|
