Biomes
This biome is characterized by permafrost, low temperatures, and little precipitation
Tundra
What is Evaportation?
water changes from a liquid to gas.
What is nitrification?
A two step process where bacteria converts ammonia into Nitrites
What is the carbon cycle and why is it important for life on Earth?
A fundamental building block for organic molecules and regulates Earth’s temperature by balancing the CO2 levels.
what is an element
An element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei.
This term refers to permanently frozen soil found in the Arctic tundra
Permafrost
What is precipitation?
Water droplets or ice crystals in clouds combine and become heavy enough to fall to the Earth’s surface.
What is Nitrogen Fixation?
Converts atmospheric nitrogen into usable forms like ammonia. Then symbiotic bacteria takes nitrogen from the air and makes it usable for plants.
What is the difference between the fast and slow carbon cycle?
The fast carbon cycle moves carbon through living organisms over days to years via photosynthesis and respiration.
what is the rarest element
Astatine
This biome has the highest biodiversity and dense vegetation near the equator.
Tropical Rainforest
What is Condensation?
Water vapor in the air turns back into liquid water.
What is Denitrification?
Anaerobic conditions, denitrifying bacteria converts nitrates back into nitrogen gas, completing the cycle by returning into the atmosphere
How do decomposers return carbon to the atmosphere?
The atmosphere primarily consists of through cellular respiration as they break down dead organisms.
What four elements make up 96% of living matter?
Carbon (C), Hydrogen (H), Nitrogen (N), and Oxygen (O).
Often called a prairie or savanna, this biome has nutrient-rich soil but experiences frequent fires and droughts
Grassland
Where does runoff flow to?
rivers, lakes, and oceans.
What is assimilation?
Plants absorb nitrates or ammonia from the soil through their roots to build and nucleic acids. Animals consume these plants which leads to nitrogen passing into the food web.
How do humans directly disrupt the natural carbon cycle?
Burning fossil fuels and altering the land use such as deforestation
What are the four major elements found in living organisms ?
Carbon, Hydrogen, Nitrogen, Oxygen.
True or False: All deserts are hot?
False, Antarctica and the Arctic are the world’s largest deserts known as polar deserts
Condensation =
H2O vapor (gas) cools ⇾ liquid H2O.
What is Ammonification?
When an organism dies/produces waste the bacteria and fungi decompose the matter turning it back into ammonium
What is the role of photosynthesis in regulating global atmospheric carbon?
Photosynthesis acts as a critical natural regulator of global atmospheric carbon by absorbing massive amounts of CO2.
what was charles darwin's theory of evolution
proposes that species change over time through natural selection, where organisms with heritable, advantageous traits are more likely to survive and reproduce