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first exam
1st exam
50
Biology
Undergraduate 1
09/29/2014

Additional Biology Flashcards

 


 

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Term
7 characteristics of life
Definition

1.made of cells-basic unit of life

2.can reproduce-without host

3.contains dna as genetic material-contols happenings in cells

4.utilize energy/metabolism-create new molecules and use energy

5.ability to respond to stimuli-react to surroundings and other organisims

6.ability to adapt-cope with surroudings

7.maintain homeostasis-ability to maintain internal environment ie temp,ph

Term
experimental group
Definition
receives some kind of teatment or condition
Term
control group
Definition
recieves no teatment used to compare with
Term
independent variable
Definition
factor you change what you do to your exp group
Term
dependent variable
Definition
what happens as a result of that treatment what are you measuring
Term
taxonomy
Definition

the special field of biology in which scientists classify organisms

classification-grouping and naming all living organisms based on similarity of characteristics

Term
phylogeny
Definition
evolotionary relationships between organisms showing a lineage and common ancestor and using dna based evidence
Term
system of classification
Definition

kingdom

phylum

class

order

family

genus

species

Term
binomial nomenclature
Definition
two way method naming
Term
three domains
Definition
prokarya (bacteria, archaea) eukarya
Term
prokarya
Definition

smaller in size

no membrane-bound nucleus

very few organelles

true bacteria and extermophiles

Term
eukarya
Definition

larger in size

membrane-bound nucleus

many organelles

protista, fungi, plantae,animalia

Term
kingdoms are based on
Definition

cell stucture:

-eukaryotic or prokaryotic

-unicellular or multicellular

method of nutrition:

-autotrophic of heteotrophic

Term
protista
Definition
both animal and plant characteristics
Term
plants
Definition

autotrophic

cell wall

no locomotion

Term
fungi
Definition

heterotrophic

cell wall

no locomotion

Term
animalia
Definition

heterotrophic

no cell wall

locomotion

Term
phylums are based on
Definition

anatomy

symmetry of body plan:radial or bilateral

internal anatomy:chordate-backbone or cartilage structure

vertabrates:with backbone structrue or invertebrates:without backbone structure

Term
6 kingdoms
Definition
bacteria, archae-bacteria, protista, fungi, plantae, animalia
Term
vertebrate classes?
Definition
fish, mammals, reptiles, amphibians, birds
Term
what is class level based on
Definition

reproduction

physiology

Term
binomial nomenclature refers to naming useing which two levels of classification?
Definition
genus and species
Term
ecology
Definition
studyof the interactions between different organisms
Term
populations
Definition
same individual species that live and interact in some area
Term
communities
Definition

different populations interacting with eachother in some area

-food chains

-competition

-symbiosis or living together

Term
ecosystems
Definition
interactions between living (biotic) and non-living (abiotic) factors
Term
biomes
Definition
regions that share the same organisums and climate
Term
biochemical cycles
Definition
water cycle, carbon cycle, nitrogen cycle
Term
abiotic
Definition

non-living:

rocks

water

sunlight

air

soil

temp

Term
biotic
Definition

living things:

animals

plants

microbes

Term
energy cycle
Definition

cycle nutrients

producers

consumers

detritivores

Term
producers
Definition

synthesize own food and produce oxygen

multicellular plants

unicellular protists

autotrophs

use 1% of suns energy

Term
consumers
Definition

can't synthisize own food. rely on authtrophs for energy

-unicellular protists

-mutlticellular animals

-herbivores

-carnivores

-omnivores

heterotrophs

use 10% energy of level below

Term
detritivores
Definition

breakdown dead autotrophs and heterotrophs

-unicellular bacteria

-multicellular fungi

Term
importance of biodiversity
Definition

for food web-more chocies for food

increases the sustainability and stability of an environment-more diversity if something happens to an organism then community can still continue to function

Term
species richness
Definition
different types of species present in an area
Term
species diversity
Definition
different number of species and how many of each type you have
Term
what 6 factors affect size of population
Definition

-birth rates vs death rates

birth=death, stable

birth>death, growth

birth<death, decline

-immigration vs emigration

-generation time

time required to reach reproductive age

-survivorship

% surviving to reproduce

-carrying capacity

the max number of indiviuduals that can be supported by a specific area

-predator-prey

Term
carrying capacity
Definition

max # of individuals that can be supported by a specific area

factors:resourses

-water

-food

-shelter

-climate

Term
slow growth
Definition
prereproductive and reproductive groups slightly higher in numbers, population grow slightly in size in 10 years
Term
zero/stable growth
Definition
all three reproductive groups will have similar numbers, population will remain smae in next 10 years
Term
rapid growth
Definition
prereproductive group is much larger in size than other, population will boom in next 10 years
Term
decrease
Definition
post reproductive group larger than other groups, population will decline in 10 years
Term
communtity interactions
Definition

competion

predator/prey

symbiosis

Term
keystone species
Definition
species that is vital to community in order to keep other populations in check
Term
what is symbiosis and what are the three types
Definition

interaction of organisms that have have become permanent

mutualism-both organisms benift

commensalism-one organism benifits other is not affected

parasitism-one organism benifits the other does not

Term
competitive exclusion
Definition

use similar resources

cannot co-exist

Term
interspecific competion
Definition

utilizing slightly different resources

can co-exist

Term
fundamental niche
Definition
the entire arwa that can be used to inhabit
Term
realized niche
Definition
the actual area that is then inhabited
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