https://padlet.com/kimtrevino34/8alyb6in0opv Made with an aura of mystery en-us 2018-11-12 17:08:59 UTC 2018-11-16 17:50:55 UTC hello@padlet.com kimtrevino34 https://padlet.com/kimtrevino34/8alyb6in0opv/wish/303370001 Biological Populations- concerned with the growth & regulation of population size, genetics,demography & life history evolution & interactions among species
Ecological Niches- the role & position a species has in its environment, how it meets its needs for food & shelter, how it survives & reproduces. It includes all of interactions with biotic/abiotic factors of environment
Species Interactions- within ecological webs include 4 main types of 2 way interactions: mutaualism, commensalism, competition, predation
Keystone Species- a species on which other species in an ecosystem largely depend on each other, so if one were to be removed the ecosystem would change drastically
Species Diversity- us a number of different species that are represented in a given community
Major Terrestrial & Aquatic Biomes- There are 8 major terrestrial biomes: tropical, rainforest, savannas, subtropical deserts, chaparral, temp grasslands, temp. forests, boreal forests, & arctic tundra
There are many aquatic biomes ponds & lakes, streams/rivers, wetlands, oceans, coal reef, estuaries

]]> 2018-11-12 17:16:17 UTC https://padlet.com/kimtrevino34/8alyb6in0opv/wish/303370001 kimtrevino34 https://padlet.com/kimtrevino34/8alyb6in0opv/wish/304436248 Carbon- link between photosynthesis in producers & respiration in producers, consumers, & decomposers
Additional CO2 added to the atmosphere are: tree clearing, burning of fossil fuels, warms the atmosphere
Nitrogen-
-fixed by lightning
-fixed by bacteria & cyanobacteria
-nitrification~ soil bacteria change ammonia & ammonium ions to nitrate ions
-denitrification~ nitrate ions back to nitrogen gas
Phosphorus- limiting factor for plant growth
impact of human activities
~clearing forests
~removing large amounts of phosphate from the earth to make fertilizers
~erosion leaches phosphates into streams
Sulfur- sulfur found in organisms, ocean sediments, soil, rocks, & fossil fuels
-SO2 in the atmosphere
-H2SO2 & SO4
-Human activities affect the sulfur cycle
~burn sulfur-containing coal & soil
~refine sulfur-containing petroleum
~convert sulfur-containing metallic mineral ores
Water Cycle-
natural renewal of water quality three major process
~evaporation
~precipitation
~transpiration
alteration of the hydrologic cycle by human
~withdrawal large amounts of freshwater @ rates faster than nature can replace it
~clearing vegetation
~ increased flooding when wetlands are drained
Conservation of Matter
matter cannot be changed or destroyed
 ]]> 2018-11-14 17:40:46 UTC https://padlet.com/kimtrevino34/8alyb6in0opv/wish/304436248 kimtrevino34 https://padlet.com/kimtrevino34/8alyb6in0opv/wish/304454660 Climate Shifts- a long term change in the earths climate especially a change due to an increase in the average atmospheric temperature
Species Movement-
Ecological Succession- the process if change in the species structure of an eco community over time

]]> 2018-11-14 18:11:03 UTC https://padlet.com/kimtrevino34/8alyb6in0opv/wish/304454660 kimtrevino34 https://padlet.com/kimtrevino34/8alyb6in0opv/wish/305349395 Biodiversity -found in genes, species, ecosystems & process is vital to sustaining life on earth.
Species: set of individuals who can mate & produce fertile offspring
8 million to 100 million species 
1.9 million identified 
unidentified are mostly in rain forests & oceans 
species diversity 
genetic diversity 
eco diversity 
-biomes: regions with district climates/ species
functional diversity 
biodiversity important part of natural capital  
Natural Selection-explains how life changes over time 
fossils: physical evidence of ancient organisms, reveal what their external structures looked like 
fossil record: entire body of fossil evidence 
Natural Selection through mutations & adaptations- populations evolve by becoming genetically different 
Genetic Variations
~first step in biological evolution 
~occurs through mutations in reproductive cells
~mutations:random change sin 
DNA molecules 
Evolution- is the change in a populations genetic makeup over time. Evolution forces adaptations to change in environmental conditions in a population. The diversity of life on earth reflects the wide variety of adaptations necessary & suggests that environmental conditions have varied widely over the life of the earth.  
Ecosystem Services- the many and varied benefits that human freely gain from the natural environment & properly functioning ecosystems 
for example grassland & forest ecosystem ]]> 2018-11-16 17:00:25 UTC https://padlet.com/kimtrevino34/8alyb6in0opv/wish/305349395 kimtrevino34 https://padlet.com/kimtrevino34/8alyb6in0opv/wish/305352057 Photosynthesis- process by which green plants & other organisms use sunlight to synthesize food from carbon dioxide & water 
Cell Respiration- set of metabolic reactions & processes that take place in cells of organisms to convert biochemical energy from nutrients into ATP then release waste products 
Food Webs- a system of interlocking & interdependent food chains 
Trophic Levels- each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain & the same nutritional primary source of energy 
Ecological Pyramids- a graphical representation designed to show the biomass or bio productivity at each trophic level in a given ecosystem ]]> 2018-11-16 17:05:17 UTC https://padlet.com/kimtrevino34/8alyb6in0opv/wish/305352057