Levels of Organization
All of the interacting biotic and abiotic factors in a particular area
ecosystem
Triple points
This biome has low biodiversity because of the cold temperatures, lack of consistent precipitation and permanently frozen ground called permafrost.
tundra
Quadruple Points
Identify three things that animals often compete for.
food
water
territory
mates
Slow and steady population growth
logistic growth
Quadruple Points and Point Donation
1. Which climate zone is LA in?
2. Which biome is LA in?
1. temperate zone
2. chaparral
biotic =
abiotic =
living
nonliving
Each living thing on Earth, from a bacterium to a blue whale, is an individual __________.
organism
This biome is characterized by hot daytime temperatures, relatively cold nights and very little rainfall.
deserts
A symbiotic relationship in which one organism benefits but the other is harmed
Parasitism
The type of population growth that occurs when a population is not being affected by limiting factors
exponential growth
temperature decreases
The term that refers to any factor that restricts the number of individuals in a population. For example, predators or the amount of water present.
Limiting factors
All the organisms in an ecosystem that belong to the same species
Population
_______ are very large ecosystems that have similar _______ as well as similar plant and ______ life.
biomes
climates
animal
In a parasitic relationship, the __________ benefits and the ________ is harmed or killed.
parasite,
host
Point donation
Which type of population growth are most of the species experiencing within stable ecosystems?
logistic growth
Point donation
_________ refers to how far north or south a place is on Earth. This has a direct effect on the amount of sunlight it receives and thus greatly affects its climate.
Lattitude
Point donation
The largest number of individuals of one species that an ecosystem can support over time
Carrying capacity
Different populations interacting in a particular area
Community
Point donation
This is the largest ecosystem on Earth. It has very low population density because of its enormous size.
open ocean
A symbiotic relationship in which both species benefit
Identify three density-dependent limiting factors.
number of predators and/or prey
competition
number of parasites
amount of water
amount of food
amount of space
Double points and point donation
Identify two of the main greenhouse gases in Earth's atmosphere.
carbon dioxide
water vapor
methane
nitrous oxide
The branch of biology that studies the interactions that occur among organisms and their environment.
Ecology
Write the levels of ecological organization from smallest to largest.
organism --> population --> community --> ecosystem --> biome --> biosphere
Point donation
This biome has a very seasonal climate and its dominant plant community is made up of trees whose leaves change color in the fall and then fall off in the winter.
temperate forest
Point donation
A symbiotic relationship in which one organism benefits and the other is not affected
Commensalism
Identify three density-independent limiting factors.
storms
earthquakes
forest fires
human development/building/destruction
Explain the two main effects large bodies of water have on an area's climate.
Large bodies of water moderate temperatures and increase precipitation.
1. All life on Earth =
2. All water on Earth =
3. All the gas around the Earth =
4. All the land and rocks on Earth =
1. biosphere
2. hydrosphere
3. atmosphere
4. geosphere
Briefly describe a community interaction that you engage in regularly.
1.Eating food which is then digested by the bacteria inside you.
2. Playing with your pets.
3. Feeding birds in the park.
4. Planting a tree.
1. Identify the two main types of aquatic biomes
2. Identify one specific biome from each type.
1. saltwater and freshwater
2. saltwater: oceans
freshwater: lakes, rivers, ponds
Identify each type of symbiotic interaction and then use pluses, minuses and zeroes (+, -, 0) to indicate how the species involved are being affected.
mutualism +, +
commensalism +, 0
parasitism +, -
1. The number of organisms in a given area is called ___________.
2. Identify the three ways that populations can be distributed in an ecosystem.
1. population density
2. clumped, uniform, random
Identify Earth's three main climate zones.
Then describe the amount of sunlight they get and their climate.
1. Polar zone: little sunlight; cold and dry climate
2. Temperate zone: medium sunlight; moderate temperatures and seasonal climate
3. Tropical zone: lots of sunlight; warm and wet climate
1. Identify the name for regions of the Earth that have been transformed by human activity.
2. Identify a specific example of these regions.
2. cities, large farms, rangelands, interstate highways, etc.