Unit 1: Ecosystems
(CED pg 46) Turbidity is...
The cloudiness or haziness of a fluid
(CED pg 60) What is species richness?
The amount of different species in an ecosystem.
(CED pg 72) What is the niche of specialist?
Constant environments
(CED pg 88) How are convergent boundaries formed?
When tectonic plates move toward each other, leading to collision.
(CED pg 103) An individual who lives in small community catches over 20 fish every day in the only pond that the community possess. This as an example of what?
Tragedy of the commons
(CED pg 45) What is an example of a terrestrial biome?
taiga, temperate rainforests, temperate seasonal forests, tropical rainforests, shrubland, temperate grassland, savanna, desert, and tundra
(CED pg 60) What advantage does biodiversity bring to an environment?
Fast recovery from environmental disasters and reduced vulnerability to population loss
(CED pg 73) What is the difference between k-selected species vs r-selected species?
K selected species are large, live in stable environments, live long, few offspring per reproduction event. R-selected species are small, have short life spans, and have many offspring per reproductiob event.
(CED pg 88) What is the effect of divergent boundaries?
Sea floor spreading, volcanoes, earthquakes, and rift valleys.
(CED pg 104) Clear cutting is a contributor to...
Deforestation, flooding, soil erosion, climate change
(CED pg 51) Primary productivity
the rate at which sunlight is converted into organic compounds via photosynthesis over a unit of time.
(CED pg 62) Why have species that live on islands adapted to the specialist vs generalist trope?
Limited resources/competition
(CED pg 76) What is the effect of population overshoot?
Population dieback
(CED pg 88) Horizontal action between two tectonic plates is also known as...
Transform boundaries
(CED pg 114) The use of permeable pavement is beneficial because it... (hint: IMPERMEABLE pavement limits water absorption)
Increases water infiltration
(CED pg 53) If a primary producer receives 100% energy in the trophic pyramid, how much energy does a secondary consumer receive? (10% rule)
1%
(CED pg 64) How does sea level rise affect biodiversity?
By destroying/flooding habitats, wiping out species populations.
(CED pg 78) What is most likely the trend of a rapidly growing population?
Large number of offspring/ adolescents, lower number of adults and elderly.
(CED pg 90) A farmer applies 150 kg of nitrogen fertilizer to a 2-hectare field. If only 40% is absorbed by plants, how many kg of nitrogen is lost to runoff.
(CED pg 118) Species that take over/harm areas that are home to native species
Invasive species
(CED pg 48) Nitrogen fixation
The process in which nitrogen is converted into ammonia that is available for consumption by plants.
(CED pg 62) A bird population decreases from 850 individuals to 680 individuals over 5 years. Calculate the percent change in population.
20%
(CED pg 80) A country has a population growth rate of 2.5% per year. Calculate the doubling time using the rule of 70
28
(CED pg 92) What visual effect does the Coriolis effect have on things like wind currents or planes.
They appear to move at a curve rather than in a straight line.
(CED pg 104) A logging business cuts 120 hectares of forest. If 1 hectare = 10,000 square meters, what is the total area cleared in square meters?
1,200,000 square meters