Environmental Science - Test 2

Front 1

weatherford place

Back 1

first community of Eco Craft homes. Out of Roswell Ga. 8 solar homes within walking distance from major destinations

Front 2

Eastgate Centre

Back 2

building in Zimbabwe that uses termite-mound-inspired heating an d cooling system.

Front 3

natural selection

Back 3

1. every species has variations
2. many traits are passed from parents to offspring
3. Survival of the fittest traits

Front 4

Animal ancestors

Back 4

dire wolf, short-faced bear, saber-toothed cat, bobcat, weasel, dogs.

Front 5

dire wolf

Back 5

fed on prey larger than itself (bison), many fossils in the Americas esp in California, died 10-16,000 yrs ago. Power rather than speed, couldn't hunt fast prey.

Front 6

golden toad

Back 6

Costa rica: went extinct due to fungal infection caused by humans

Front 7

golden toads were ______ to Monteverde cloud forest. Why is this dangerous?

Back 7

endemic (only occurring there). Because anything that happens within that ecosystem can be devastating

Front 8

Genetically based change

Back 8

appearance, functioning, and/or behavior

Front 9

premises and logic of natural selection

Back 9

organisms struggle to survive and produce more offspring than can survive, different characteristics are passed on while others aren't

Front 10

examples of accidental DNA change

Back 10

deletion, substitution, and addition of a nucleotide

Front 11

allopatric speciation

Back 11

species form due to physical separation of a species over some geographical distance

Front 12

environmental hotspots

Back 12

threatened but unique

Front 13

modern weapons against cane toads

Back 13

toads don't realize meat ants are a threat and get attacked by them when lured out by catfood

Front 14

5 changes to Michigan due to Zebra Mussels

Back 14

--cities closed down due to clogged water pipes
--mussels consume most of the algae so there's none left for algae feeding fish (fish are dying)
--economic loss
--clearer water, meaning healthier plants
--bottom feeding fish eat mussel waste

Front 15

realized niche

Back 15

species must share resources and compete (leads to resource partitioning)

Front 16

fundamental niche

Back 16

species can have most of resources with little competition

Front 17

trophic level

Back 17

rank in the feeding heirarchy (producers, consumers, and detritivores/decomposers)

Front 18

food web

Back 18

visual map of feeding relationships and energy flow.

Front 19

keystone species

Back 19

has a deep impact on ecosystem. usually consumers.

Front 20

secondary succession

Back 20

when an ecosystem develops because of dramatic change

Front 21

primary succession

Back 21

when an ecosystem develops from rock or sand to having species

Front 22

population

Back 22

group of same species in same area

Front 23

species

Back 23

group of populations who have certain characteristics and can breed naturally

Front 24

community

Back 24

assemblage of populations that live in the same place at the same time

Front 25

abiotic factor

Back 25

nonliving component of the environment

Front 26

niche

Back 26

functional role of a species in a community

Front 27

habitat

Back 27

environment in which an organism lives

Front 28

levels of eco-organization

Back 28

--organisms interact with each other and abiotic environ.
--science that deals with distribution of organisms, their interactions between other orgs and abiotic
--how individual species interact with one another (why they wax and wane)

Front 29

5 major population characteristics

Back 29

density
distribution
ago
sex rato
birth and death rates

Front 30

k-selected species

Back 30

small population, low biotic potential, high gestation period, invest heavily in a few young. Density-dependent factors

Front 31

r-selected

Back 31

high biotic potential, large number of offspring, Don't care for young after birth. Density independent factors.