How can we help?

You can also find more resources in our Help Center.

62 terms

Biology Test 2

non-living components of an ecosystem - soil, water, minerals, weather, temperature, wind, soil, rocks, light, radiation etc.
living features of an ecosystem
biotic producers
able to capture sun's energy through photosynthesis and absorbs nutrients through the soil,
biotic consumers
unable to capture sun's energy, so they consume the producers, and
decomposers - break down organic layer to provide nutrients for growing plants ex. insects, fungi, algae, bacteria
- a biological environment consisting of all of the organisms living in a particular area. As well as all of the nonliving, physical components with which the organisms interact, such as air, water, soil, and sunlight; community of animals and plants interacting with one another & with their physical environment
ecosystem services
Benefits provided by resources and processes supplied by an ecosystem. As human population expands, these resources are becoming violated.
ex: Clean drinking water, decomposition of waste
nutrient cycle
Starts with the nutrients (producer), How nutrients move from environment to living animal, and back to environment. Producer --> Consumer --> Decomposer --> Soil --> Producer....
a group of interacting organisms sharing a populated environment.
all the organisms that both belong to the same species and live in the same geographical area.
populations producers
organisms such as plants that make their own food through photosynthesis and absorbing nutrients through the soil
populations consumers
Organisms that eat producers and cannot create their own food.
- break down dead plants/animals and their waste (ie bacteria and insects)
energy flow
- break down dead plants/animals and their waste (ie bacteria and insects)
water cycling
rain, evaporation - that whole cycle from sky to earth, etc.
direct benefits
- healthy ecosystems provide a variety of resources directly to people. Ex: Fish that are caught, plants that provide medicine, forests & trees that provide shelter and furniture.
indirect benefits
- Indirectly, ecosystems help us too. Climate regulation from shade and windbreaks, also, forests return water to the atmosphere through transpiration. Additionally, plant roots stabilize soil and increase the ability to hold water ( See powerpoint Ecosystem Services) Flood protection, controls erosion, waste breakdown in soil, recycles nutrients, water filtration (Catskill Mountain Range), air filtration
- indirect benefit, Tree's roots along riverbed hold soil together, and prevent erosion.
flood control
indirect benefit - Hurricane Katrina
climate regulation
- indirect benefit, high mountains (protecting from rain clouds, etc.) - no Trees = increased heat
supporting services
- (foundational) Producers, nutrient cycling, pollination, water cycle, SUN
They are foundational services- producers, pollinators, and cycles
provisioning services
- food, medicine, fiber, fuel, shelter - DIRECT BENEFITS
regulating services
clean air, purifying water, controlling erosion, modifying climate, detoxifying soil - INDIRECT BENEFITS
cultural services
aesthetics, sense of place, belonging, intellectual stimulation, feelings about things
- a proposed explanation for an observable phenomenon. (ex. maybe car is out of gas)
ex. Car won't start
An educated estimate of a result or reaction from an experiment.
scientific method
observation, question, hypothesis (educated guess), prediction, experiment, results (data), and conclusion (If it's wrong = create a new hypothesis, and if it's right = create a new experiment)
should be able to reproduce observations in an experiment.
predictive power
explanations can predict new observations that can be tested
Lord Kelvin estimated the temp of the earth. Very wrong. He didn't take into account radioactivity. So it threw off his prediction.
explanation doesn't appeal to supernatural. Only naturalistic explanations allowed
- things that happened in the past happen in the same way they do today.
any alteration in an organism by which it becomes better fitted to survive and multiply in its environment. Process takes many generations, also refers to a feature which is especially important for an organism's survival.
when you get down to this classification, then nothing else is like it (very individualized). New species are created through the process of macro-evolution.
natural phenomena
- a non-artificial event in the physical sense, and therefore not produced by humans, although it may affect humans- volcanic eruptions, weather.
a scientifically acceptable principle or body of principles offered to explain phenomena. Not the same thing as a scientific law, theories are only valid until proven otherwise.
genealogical classification
culturally, summary of relationship of groups of organisms, distinguishing by obvious physical traits. Family trees.
folk classification
taxonomic, eating creatures with cloven hooves or shells, those with shells, those with cloven hooves for example, all parts of the world have their own systems of naming local plants and animals, extends as far back as leviticus
modern-evolutionary classification
all based on evolution
the science of heredity w/genes
Carl Linnaeus
- set the groundwork for modern biological classification. Began grouping species according to their shared physical characteristics. He is most known for binomial nomenclature
tying them all together
simply one species
Linnaean hierarchy
Kingdom, Phylum, Class, Order, Family, Genus, Species (acronym - King Phillip Cleaned Our Filthy Gym Shorts OR King Phillip Came Over For Great Spaghetti)
genealogy/lineage study used by the Maori people of New Zealand. Example: story of the "Sweet Potato" (kumara) Gods sent Caterpillars to destroy sweet potatoes, but this is just nature. Passed down orally.
Knowledge is encoded in a mental construct called whakapaka. Helped them understand the stories of tying together the thing in the ecosystem Used to make sense of the surrounding envir
- taking evolution out of the classroom, and only teach religion (Genesis, etc.) From Canada
intelligent design
- everything happened just like it did in Genesis. Strictly Biblical
ex nihilo creation
The idea that the universe was created from absolutely nothing, by a supreme being. Creationists believed in ex-nihilo creation.
biblical literalism
The idea that everything in the Bible was meant to be literal. i.e. Jesus, the Bread of Life, was actually a loaf of bread.
biblical exclusivity
If it ain't in the Bible, it don't exist and didn't never happen.
natural selection
- the process by which traits become more or less common in a population due to consistent effects upon the survival or reproduction of their bearers. It is a key mechanism of evolution.
selections will act against extremes, thus average traits will have higher survival rates
one phenotype is the fittest and the population will have averages closer to that trait
: average phenotype is selected against and extreme phenotypes become more common
The process by which populations of species adapt to increase their fitness (fitness = an individuals ability to produce offspring) - this idea is generally accepted and not very controversial, small changes that occur during a smaller period of time that do not lead to a new species. this could include height or color or something like that.
- The collective result of microevolution which leads to the origin of a new species - this idea is controversial
evolution of species
(traditional ecological knowledge) the way in which native people acquire and utilize knowledge related to the ecosystem in which they live.
data collected over a period of years.
data collected at one point in time; how data is collected in Western Science
environmental assessment
assessment of the effects that a project will have on the environment. These must include the native people as they will be able to tell what the long term as well as short term effects may be.
Blog 1 Greener revolution
food, fertilization (making agricultural practices better), crop rotation, legumes, helps get nutrients back into the soil
Blog 2 Madagascar
people are destroying "protected" areas-> no money to keep those areas protected= destruction of unique biodiversity. Proposed solution= eduction to teach how to help the economy and the ecology at the same time. - ROSEWOOD - taken away, not keep a whole lot and sent out, farm land, effects of deforestation, how to fix problem = education?