Units 1&2:Ecosystems & Biodiversity
This is the most important species in a food web. If removed, the absence of this species will cause the food web to collapase.
What is keystone species?
This line on a survivorship curve represents organisms that have a high mortality as young but low mortality as older adults.
What is Type III?
These are the types of irrigation methods used in agriculture.
What are Drip, flood, furrow, spray?
This is the main difference between active and passive solar systems.
The principal gases fueling the greenhouse effect excluding carbon dioxide (CO2) and methane (CH4).
What are Water Vapor, Nitrous Oxide (N2O), and Chlorofluorocarbons (CFC's)?
This type of symbiotic relationship has one organism benefiting (+) while the other is harmed (-)
What is Parasitism?
What is the A Layer?
These are some of the main methods used in commerical fishing.
What are trawling, long lines and drag nets?
These are the main air pollutants for photochemical smog.
What are VOC's, NOx and sunlight?
What is ocean acidification?
This biome is located between 50 and 70 degrees North Latitude. It has long, cold winters and short, moderate summers. Th dominant vegetation are conifers and needle-like evergreens such as spruce and pine. Animals such as moose and lynx live in this biome.
What is the taiga/boreal forest?
This is the shape of an age-structure diagram of a country experiencing rapid growth rate.
What is a triangle?
Combined methods to effectively control pest species.
What is Integrated Pest Management (IPM)?
This is used to calculate the amount of chemical it takes to produce 50% mortality in a population.
What is LD50?
This layer of the atmosphere helps protect the earth from harmful UV rays.
What is the ozone layer?
According to the Theory of Island Biogeography, this island would have the highest biodiversity amongst a group of islands.
What is the largest and closest island to the mainland?
This trade-wind phenomena related to changing ocean temperatures in the Pacific Ocean results in warmer than normal waters near the western coasts of both North and South America.
What is El Niño?
This is seen in cities such as NYC, where temperatures can be as much as 10-15 degrees hotter due to darker surfaces, lack of trees and machinery/factories releasing heat.
What is urban heat island?
This is the reason why nuclear energy is considered a nonrenewable resource.
What is the finite amount of uranium available?
This is one of the main features of an invasive species.
What is a generalist, no natural predators, r-selected (usually), Type III (usually)?
When measuring biodiversity, these are the two main factors.
What is richness and evenness?
These are the layers of the atmosphere.
What is the troposphere, stratosphere, mesosphere, thermosphere, exosphere
A farm uses 18,000 liters of water per day to irrigate crops. After switching to drip irrigation, only 11,700 liters of water is used.
What is the percent of water saved by the farmer by switching irrigation methods?
What is 35%
A coal-fired power plant burns 4,500 tons of coal each day. Each ton of coal releases 2.86 metric tons of CO₂. How many metric tons of CO₂ does the plant release each day?
12,870 metric tons.
Atmospheric CO₂ concentration increased from 300 ppm in 1970 to 410 ppm in 2025. What is the average increase per year?
What is 2 ppm per year?