UMaine: Bio 100 Exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Define biology - CORRECT ANSWER - the study of living organisms and their interactions
with each other and their environments
Survivorship Curve Types - CORRECT ANSWER - a graph of the number of individuals
surviving at each age interval plotted versus time
Batesian Mimicry - CORRECT ANSWER - a harmless species mimmics/looks like a harmful
species
i.e. hawk moth larva & green parrot snake
Mullerian Mimicry - CORRECT ANSWER - two harmful species mimic each other
i.e. cuckoo bee & yellow jacket
cryptic coloration - CORRECT ANSWER - species is camouflaged/more blended with its
environment to hide from predators
i.e. Indian leaf butterfly
aposematic coloration - CORRECT ANSWER - species has bright, noticeable colors used to
scare scare off predators
i.e. poison arrow frogs, skunks
dominant species - CORRECT ANSWER - - most competitive over resources
- most successful at avoiding predators
i.e. kangaroo, caribou
, keystone species - CORRECT ANSWER - - strong influence on community, influences other
species
- NOT dominant or most abundant
ecosystem engineers - CORRECT ANSWER - - influence community by changing physical
components of their environment
primary succession - CORRECT ANSWER - occurs in an area devoid of vegetation and
usually has no topsoil
i.e. lava flow, retreating glacier
secondary succession - CORRECT ANSWER - occurs in an area where a disturbance that
affected pre-existing populations begins to regrow
------topsoil still exists
i.e. forest fire
population - CORRECT ANSWER - group of organisms of one species in one location that
interact with each other
species - CORRECT ANSWER - group of individuals who interbreed and produce offspring
capable of surviving and able to reproduce themselves
ecosystem - CORRECT ANSWER - - all the organisms living in a community
- biotic and abiotic interactions
- energy transformations
Two main processes in an ecosystem - CORRECT ANSWER - 1) energy flow - always need
constant supply of energy
2) chemical cycling - always recycling the elements
ACTUAL Exam Questions and CORRECT
Answers
Define biology - CORRECT ANSWER - the study of living organisms and their interactions
with each other and their environments
Survivorship Curve Types - CORRECT ANSWER - a graph of the number of individuals
surviving at each age interval plotted versus time
Batesian Mimicry - CORRECT ANSWER - a harmless species mimmics/looks like a harmful
species
i.e. hawk moth larva & green parrot snake
Mullerian Mimicry - CORRECT ANSWER - two harmful species mimic each other
i.e. cuckoo bee & yellow jacket
cryptic coloration - CORRECT ANSWER - species is camouflaged/more blended with its
environment to hide from predators
i.e. Indian leaf butterfly
aposematic coloration - CORRECT ANSWER - species has bright, noticeable colors used to
scare scare off predators
i.e. poison arrow frogs, skunks
dominant species - CORRECT ANSWER - - most competitive over resources
- most successful at avoiding predators
i.e. kangaroo, caribou
, keystone species - CORRECT ANSWER - - strong influence on community, influences other
species
- NOT dominant or most abundant
ecosystem engineers - CORRECT ANSWER - - influence community by changing physical
components of their environment
primary succession - CORRECT ANSWER - occurs in an area devoid of vegetation and
usually has no topsoil
i.e. lava flow, retreating glacier
secondary succession - CORRECT ANSWER - occurs in an area where a disturbance that
affected pre-existing populations begins to regrow
------topsoil still exists
i.e. forest fire
population - CORRECT ANSWER - group of organisms of one species in one location that
interact with each other
species - CORRECT ANSWER - group of individuals who interbreed and produce offspring
capable of surviving and able to reproduce themselves
ecosystem - CORRECT ANSWER - - all the organisms living in a community
- biotic and abiotic interactions
- energy transformations
Two main processes in an ecosystem - CORRECT ANSWER - 1) energy flow - always need
constant supply of energy
2) chemical cycling - always recycling the elements
