Unit 1
This terrestrial biome is categorized by little precipitation and extremely cold weather.
What is a tundra?
This biodiversity measure is used to figure out how many different species are in an area.
What is species richness?
This reproductive strategy best describes invasive species.
What is an r-selected species?
This is one human activity that increases soil erosion.
What is farming, construction, off-road vehicles, logging, overgrazing, or deliberate forest fires?
What is uneven heating/uneven solar radiation?
This symbiotic relationship is categorized by one organism benefitting while the other is uneffected.
What is commensalism?
There are 3 islands. Island 1 is closest to the mainland and Island 3 is furthest. This island is the least biodiverse.
What is Island 3?
What is Type 2 Survivorship?
Describe what happens to the density and motion of warm air molecules between 0 and 30 degrees latitude.
Density decreases, causing the warm air to rise.
The energy stored as biomass in an organism. (options- NPP, GPP, R)
What is Net Primary Productivity? (NPP)
This effect leads to a loss of genetic diversity when the original population is severely reduced after a large disruption
What is the bottleneck effect?
There was a drastic increase in moose population, which leads to a depletion of resources. This scenario best describes...
What is an overshoot of the carrying capacity.
This is the plate boundary in which we can find mountain formation, island arc, volcanic activity, or oceanic trenches.
What is a convergent plate boundary?
These are winds that blow between 0 and 30 degrees latitude.
What are trade winds?
This zone of a lake is the most productive. (options- benthic, littoral, euphotic, or limnetic)
What is a littoral zone?
What is it a community is stable after going through secondary succession and contains trees such as oaks and hickories called?
This demographic transition stage could describe a population is experiencing higher death rates than birth rates with a declining population rate. Include an example of this stage.
What is stage 5 and Germany, Japan, Italy, Portugal, Greece, Croatia?
Use your soil chart. This type of soil is 25% sand, 40% silt, and 35% clay.
What is clay loam?
Describe the difference between La Nina and El Nino in their effects on climate.
What is that El Nino reverses the direction of ocean currents which has opposing effects on weather while La Nina intensifies existing conditions?
The process of converting atmospheric nitrogen to ammonia. (options- fixation, assimilation, ammonification, nitrification)
What is nitrogen fixation?
This ecosystem service is exemplified by a local forest being hotspot for carbon sequestration.
What is a regulating service?
In 1980, the population in Lane County was 250,000. This grew to 280,000 in 1990. Indicate the % change in population and show your work with units.
What is
Percent Change= New value-old value/old value x100
Percent change= 280,000 people-250,000 people/250,000 people x100
Percent change= 30,000/250,000x100
Percent change= .12x100
Percent change= 12%?
This is the soil horizon where nutrients accumulate, also known as the zone of illuviation.
What is soil horizon c?
A science class wanted to test the effects of an intensifying El Nino event on the temperature in their area. They monitored sea surface temperatures off the coast of Ecuador and locally for 6 months. They then compared it to that of a non-El Nino year. Identify the independent and dependent variables and control group.
What is the IV=location of study, DV=sea surface temperatures over 6 months, and CG=sea surface temperatures in the non-El Nino year.