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Community Interactions
Energy Flo
Ecological succession
Ecology and the Niche
8 Characteristics of life
100
What is an ecological resource and provide an example?
Ecological resource= necessity of life (food, water, shelter, etc).
100
Give an example of a terrestrial food chain:
Grass--> Aphid--> Lady Bug --> Bird
100
What is lichen?
Algae and fungi!
100
What is the difference between a population and a community?
A population is a group of one species and a community is a group of multiple species
100
Why do we all have a universal code/DNA?
Because we all come from a common ancestor, millions o years ago
200
What two organisms are involved with predation? (IE what are their roles' names?)
Predator and Prey
200
Why do there need to be more producers at the bottom of the energy pyramid?
Becuase so much energy is lost as it goes up the energy pyramid, and they need it to support the producers at the top
200
What is an ecological disturbance? Provide one example
changes in environmental conditions that cause change in an ecosystem- ex= wildfire, volcano, farming
200
What is the difference between abiotic and biotic factors in an ecosystem? Give an example of each
Abiotic= nonliving parts (sunshine), biotic= living parts (plants)
200
What is the difference between growth and development?
Growth is a long period with measured, incremental changes, and development is a shorter period with rapid and dramatic shifts
300
What is mutualism and what is one example?
Mutualism= both species benefit from the relationship (+,+) ex: Pollination
300
When will the population size of the primary consumers DECREASE?
When the population size of the producers DECREASES
300
What is the typical order of primary succession plants?
liche--> grasse--> shrubs-->trees
300
What is the competitive exclusion principle?
No two species can share the same niche at the same time
300
How does a unicellular organism grow versus how a multicellular organism grows?
A multicellular organism's cell simply enlarges, whereas a muticellular organism creates more cells.
400
What does symbiosis mean and what do sym and bios literally mean together?
“Sym”= together “bios”= life Symbiosis= any relationship in which two species live closely together
400
What is the difference between a food chain and a food web and a food pyramid?
A food chain is a linear diagram of who is eaten by whom in an upwards transfer of energy; a food web is an interconnected web of food chains; an energy pyramid is a diagram that shows the numerical transfer of energy up through the trophic levels
400
What is a pioneer species?
The first species to populate an area after primary succession
400
Why did we look at the 3 species of Northern American warblers (birds) who live in the same spruce trees but feed in different parts of the tree?
the species are similar but live in different area so each has a different niche- because no two species can live in the same niche
400
What does DNA have instructions to make?
Proteins
500
What is commensalism AND parasitism?
Parasitism= one organism lives on or inside another organism and harms it (+,-) One benefits, the other is harmed. The organism they live on/in is called a host Commensalism= one species benefits from the relationship, the other neither benefits or is harmed (+,0).
500
If there were a quaternary trophic level (the fifth that ate the tertiary trophic level), how much of the original energy supply would it get?
After losing 90% from the 1% level, the quaternary trophic level would have 0.01% energy left. That's why this level doesn't often exist!
500
What is the differnece between primary and secondary succession?
Primary takes place when there is NO soil left over after the disturbance, and secondary succession takes place when there IS soil left
500
What are three levels of organization ecology? (such as starting big out at biosphere)
Species population community ecosystem biome biosphere
500
What are the 8 characteristics of life, in the ORDER we learned them in?
ALL Livings things: Are Made of cells Reproduce Have DNA Grow and develop Obtain and Use Energy Respond to their environment Maintain homeostasis Evolve