organism
population
community
ecosystem
miscellaneous
100

What are primary producers?

Primary producers use the sun's energy, water, air and chlorophyll to produce their own food.

100

name the 3 key features of population

  • Size 

  • Density

  • Dispersion 

100

What is succession?

  • Succession is the natural, gradual changes of species that live in an area.

100

def of herbivores, omnivores, and carnivores

Herbivores are animals that eat only plants. Carnivores are animals that eat only meat. Omnivores are animals that eat both plants and meat.

100

what is hypothesis

- A hypothesis (plural: hypotheses), in a scientific context, is a testable statement about the relationship between two or more variables

- 1st step of scientific experiment

200

What are decomposers and give an example?

Decomposers are organisms that decompose organic material

ex: fungus, fun guy, worms, termite, etc.

200

  • 200: What is population density?

Measurement of population per unit area/volume

200

What are the 3 symbiotic relationships?

mutualism, commensalism, parasitism

200

 the three types of ecological pyramids


  • Pyramid of Number.
  • Pyramid of Biomass.
  • Pyramid of Energy.



200

What does the Golgi apparatus do?

processes, warehouses and ships (outside and inside cell) ER products

300

what is a niche

  • The ecological niche involves both the place when an organism lives and the role 

300

What are the factors that limit growth rate?

  • Limited food supply, buildup off toxic wastes, increased diseases, and predation

300

How does predation shape a community?

Increase diversity by preying on competitive dominant species

300

biotic and abiotic definition

Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere. 


300

Exocytosis and endocytosis

Endocytosis is the process of taking in material by enclosing it in a vesicle. Exocytosis is the opposite process, where the vesicle fuses with the plasma membrane and expels its contents to the outside of the cell.
400

how does energy flow in an ecosystem?

In one direction from the sun or inorganic compounds to autotrophs and then to heterotrophs 

400

How do you affect density

  • Immigration, emigration, density dependent and independent factors

400

When there is a volcano eruption what type of succession will happen?

Primary succession

400

name the two high-latitude biomes

taiga and tundra

400

what is Cytology

The study of cells.

500

give an example of all 3 symbiosis relationships.

  • Mutualism -  when both benefit 

  • Parasitism- when one benefits and the other gets harmed 

  • Commensalism - when one benefits and the other no harm nor benefit

500

 define and give examples of density dependent and Independent limiting factors factors

  • Dependent- factors that affect a population more if the population is larger (usually biotic factors, parasitism, competition, predation, food availability)

  • Independent- The factor will effect the organisms equally, regardless of the population size. (Abiotic)

500

What is the steps of primary succession?

  • Nudation.

  • Invasion.

  • Competition and Reaction.

  • Stabilization.



500

provide step by step of the different cycles: Carbon, nitrogen, water, and phosphorus.

carbon: 

  • Carbon enters the atmosphere as CO2.
  • CO2 is absorbed by autotrophs such as green plants.
  • Animals consume plants, thereby, incorporating carbon into their system.
  • Animals and plants die, their bodies decompose and carbon is reabsorbed back into the atmosphere.

nitrogen:

500

Semipermeable membrane

A membrane that allows some molecules to pass through but does not allow other molecules to pass through

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