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What are "Organisms that break down the dead remains of other organisms"?
Decomposers
TRUE / FALSE The rusting of metals is part of the chemical process that uses up oxygen.
TRUE
TRUE / FALSE
A COMMUNITY will be comprised of only one POPULATION.
False. A community will comprise more than one population.
This biome has a sandy or rocky terrain with sparse vegetation, usually short plants with thick (often spiny) leaves. Most mammals are nocturnal here.
Desert
Define COMMENSALISM and give an example.
A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited.
Barnacles on the Humpback Whale.
What are Organisms that produce their own food?
Producers
How are EVAPORATION and TRANSPIRATION related?
Evaporation is part of the process of transpiration, which is the evaporation of water from the leaves of plans.
What is the sum of all of Earth's ecosystems in land, water or air?
Biosphere
This biome's climate is tropical wet-dry with warm temperatures year-round. There are 2 seasons; a long, dry season and a very wet season.
Savanna
Name the 3 types of SYMBIOSIS.
Mutualism, commensalism, and parasitism.
What are the "nonliving physical and chemical conditions affecting organisms" called?
Abiotic factors
Explain how PHOTOSYNTHESIS and RESPIRATION are involved in cycling carbon dioxide and oxygen.
Producers (phytoplankton and plants) use carbon dioxide and produce oxygen via photosynthesis as they make food (glucose). During respiration, both producers and consumers use oxygen to break down glucose for fuel. In the process, they release carbon dioxide.
When considering the balance between organisms and the ecosystem, what category would sunlight, temperature, and droughts fall into?
ABIOTIC Factors.
Name 2 differences between a CHAPARRAL and a DESERT?
Chaparral is colder and receives more rain
What is a saltwater wetland called?
Estuary
What is a close relationship between two or more species where at least one benefits?
Symbiosis
Name 2 ways that CARBON DIOXIDE enters the air.
Volcanoes, decomposers, and the respiration of all aerobic organisms.
Define and name a TERTIARY consumer.
An organism that eats secondary consumers. Example is a SNAKE which eats a mouse which eats a grasshopper which eats plants.
What kind of plants and animals live in the TAIGA or BOREAL FOREST?
Rabbits, squirrels, lynx, and bobcats.
How is the volcanic eruption of Mount St. Helens (1990) an example of density-independent factors ?
The effect of the eruption had nothing to do with how many individuals were in each population before the eruption.
What do you clal an organism’s role in its ecosystem, including its habitat, physical requirements, the time of day it is active, its place on the food chain, and when and how it reproduces?
Niche
Describe 3 ways that bacteria are involved in the nitrogen cycle.
(1)Nitrogen fixing bacteria convert atmospheric nitrogen to ammonia in a process called ammonification.
(2) Nitrifying bacteria convert ammonium to nitrites or nitrates through a process called nitrification.
(3) Denitrifying bacteria convert nitrates to nitrogen gas.
What are the 6 main elements found in all living things?
carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur.
What biome do you live in?
Temperate Deciduous Forest
What happened when the WOLVES disappeared from Yellowstone and what happened when they reappeared?
Deer and elk populations grew so large that they basically grazed away their food in some areas.
Deer & Elk avoided the areas where the wolves were and vegetation grew back. This brought back birds and beavers. The beavers altered the rivers with their dams and produced habitats for otters, ducks, and fish. The wolves killed coyotes which allowed more rabbits and mice to survive, which brought foxes, hawks, and eagles.