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;
76 Cards in this Set
- Front
- Back
|
Leading cause of extinction |
HIPPO: habitat destruction, invasive species, pollution, population, overharvesting |
|
|
Invasive species |
Plants and animals living where they do not belong |
|
|
All organisms need: |
Sunlight energy |
|
|
Two main types of producers |
Photosynthetic & chemosynthetic |
|
|
Organic material found in the ecosystem |
Biomass |
|
|
An organisms position in the energy transfer sequence |
Trophic level |
|
|
Food web |
Multiple predator prey relationships in an ecosystem |
|
|
Food chain |
One predator prey relationship. Very direct. Found my food webs. |
|
|
Main ingredients in photosynthesis: |
Water, sun energy, carbon dioxide, chlorophyll |
|
|
What happens to atoms in a chemical reaction |
They break down & bond togetber |
|
|
Biology |
Study of life |
|
|
Ecology |
The study of the interaction of living organisms with each other and with their physical enviornment. |
|
|
Community |
A group of organisms of different species living together in a particular place |
|
|
An ecosystem consists of |
All biotic & abiotic factors |
|
|
Interdependence |
The dependence of every organism on its connections with other living and nonliving parts of its enviroment |
|
|
Habitat |
An organisms living area |
|
|
Consumers |
Need to eat other organisms in order to get energy |
|
|
Niche |
An organisms role or function |
|
|
Producer |
An organisms that provides their own food and energy |
|
|
In a food web, which type of organism receives energy from every other type? |
Decomposer |
|
|
3 types of pollution |
Water, air, ground |
|
|
Demographic studies of populations must take into consideration: |
Population size, population density, population dispersion |
|
|
Dispersion: random |
Not evenly spaced |
|
|
Dispersion: Uniform |
Evenly spaced |
|
|
Dispersion: Clumped |
Clustered in space |
|
|
As a population reaches its carrying capacity, there may may be an increase in competition for: |
Food, space, mate, habitat, etc. |
|
|
A population of organisms grows: |
When the birth rate exceeds the death rate, with no natural restrictions, in the absence of predators |
|
|
Birth & death rates are ______ on an exponential growth curve, whereas they are ______ on logistic growth curve. |
Steady; changing |
|
|
Benefits of biodiversity to humans: |
Food, timber, medicines |
|
|
The biggest threats to survival of endangered species include: |
Invasive species, habitat destruction, hunting |
|
|
How can human populations live in a sustainable way? |
Avoid hippo, control how many babies you have. |
|
|
Demography |
The study and measurement of the factors that determine how populations grow |
|
|
Carrying capacity |
The population size that can be sustained by an enviornment |
|
|
Density independent regulatory factor: |
Severe weather |
|
|
Interspecific competition |
When members of different species require the same food and space |
|
|
Competitive exclusion |
Two competitors cannot coexist on the same limited resources |
|
|
Herbivores |
Eat plants |
|
|
Omnivores |
Eat plants and animals |
|
|
Detrivore example: |
Worms & crabs |
|
|
Food chain |
A single pathway that shows energy transfew |
|
|
10% |
The total energy consumed in one trophic level is incorporated into the next level |
|
|
Carbon |
It can bond with any other element. All organic compounds contain this |
|
|
Carbohydrate |
Sucrose, sugar, polysaccharides |
|
|
Protein |
Amino acids |
|
|
Lipids |
Saturated fats, cholesterol, earwax |
|
|
Energy is required for a variety life processes: |
Growth & reproduction, movement, transport of certain materials across cell membranes |
|
|
Sun |
The ultimate original source of energy for all living things on Earth |
|
|
Photosynthesis |
The process whereby plants capture energy and make complex molecules |
|
|
The sun is considered the ultimate source of energy for life because: |
It is responsible for photosynthesis. Photosynthesis is how we get energy and plants which are the beginning of all food webs. |
|
|
Chlorophyll |
Traps the sun's light |
|
|
H20 |
The source of oxygen produced during photosynthesis |
|
|
Oxygen |
The major atmospheric byproduct of photosynthesis |
|
|
Carbon dioxide |
During the Calvin cycle, carbon containing molecules are produced from: |
|
|
In the light reaction of photosynthesis, energy is: |
Absorbed from the sun & converted into chemical energy |
|
|
Hand lens |
Magnifies small objects |
|
|
Dissecting tray |
Holds the specimen for disection |
|
|
Dissecting pins |
Holds the specimen on the dissecting tray |
|
|
Forceps |
Grasps small objects |
|
|
Dissecting scissors |
Cuts open the specimen |
|
|
Probe |
Pointed object used to examine specimens |
|
|
Scalpel |
Small, sharp knife used to dissect specimens |
|
|
Safety goggles |
Eye protection |
|
|
Triple beam balance |
Measures mass |
|
|
Graduated cylinder |
Measures liquid. More accurate than a beaker |
|
|
Test tube |
Holds liquids |
|
|
Beaker |
Holds & measures liquids |
|
|
Test tube rack |
Holds test tubes |
|
|
Medicine dropper |
Medicine drops of liquid |
|
|
Pipette |
Draws fluids by suction |
|
|
Microscope |
Make an enlarged image of a very small object. Numerous types |
|
|
Microscope slide |
Provides a mounting surface for examination by a microscope |
|
|
Coverslip |
Covers the material on the microscope slide |
|
|
Petri dish |
Shallow dish |
|
|
Thermometer |
Measures temperature |
|
|
Funnel |
Transfers liquid, filters liquid using filter paper. |
|
|
Metric ruler |
Measures length |
