Bio sec 3 Flashcards
Species
organisms that are able to interbreed and produce fertile offspring
population
same species living in an area in a particular time
community
Interacting populations in an area
Ecosystem
Interactions between biotic and abiotic things in an area
ecotone
area where it transitions between different ecosystems
naming system for organisms is called
taxonomy
Linnaeus created taxonomy what are they in order from least to most specific
Kingdom -> Phylum -> Class -> Order-> Family -> Genus -> Species
How many Domains are there
3
list 6 kingdoms, what they are
- Plantae: Photosynthesize, sessile, multicellular, specialized cells
- animalia: Eat food multicellular, move, specialized cells
- archae bacteria: live in extreme environments (salt h20, hot springs, thermal vents)
- eubacteria: diverse, live everywhere
- protista, photosynthesize, heterotrophs, absorb food
- fungi: absorb food, multicellular, no photosynthesis
3 domains
- Archae: prokaryotic, have no nucleus, most are chemosynthetic, unique RNA base sequence
- Bacteria: single-celled, prokaryotic, move by flagella, chemosynthetic/heterotroph/photosynthetic
- Eukarya: eukaryotic, have nuclei, uni or mc, sexual reproduction (animals, plants, fungi)
how does binomial nomenclature work
first name is a capital, second is lowercase, italics on the computer, underlined while writing
Dichotomous key
- 2 step process, identifies unknown environment
- determined by organisms physical characteristics
Biome
areas with general trends, temp, certain plants and animals
altitudinal and latitudinal succession
Altitudinal: different ecosystems at different heights (mountain diff from canyon)
latitudinal: biomes/ecosystems differentiating in different areas of the world.
habitat
Place with specific set of characteristics and adaptions to habitat
Range
Geographical area where population or species is or can be found
Niche
Role species play
5 different biomes
- Grassland: central Canada, good for agriculture
- Lakes:
a) litoral zone: Lake shore, plants cannot root in the bottom of lake, lots of nutrients, light productivness
b) limnetic: open lake, photosynthetic in phytoplankton, no plants, has creatures
c) Profundal: Not enough sun for plants, lots of detritus (decomposing plant and animal matter) - Deciduous forest: trees, low h20, lots leaves, decomposers, insects, Aspen, birch trees, BC
- Tundra: Permafrost, peat moss, diverse, lots decomposing
- Taiga: Conifers trees, needles, moist summer, cold dry winters
Abiotic limiting factors to ecosystems
- soil type
- moisture
- humidity
- temp range
- space
- radient E
Biotic factors limiting ecosystem growth
- predators
- parasites
- Competition
competition leads to…
intraspecific competition(within) and interspecific(with other organisms)
extrapolate
take small sample from large specimen and “guess/calculate” on a large scale
transects
Long rectangle where individuals are counted
Quadrat
Area of same size marked out, # of individuals counted (m^2)
Density
of individuals per unit volume or area, use overall # per quadrat then extrapolate