Module 3 Flashcards
What is life ?
- exchange of energy, matter and information
- individuals are special and goal directed
entropy
tendency for things to become disordered due to random movement of atoms
negative entropy e.g.
taking food from the environment
temperature
measure of heat which is a form of energy
what does metabolism do
releases energy to do work on the body
4 activities that individuals do to stay alive
breathing
water
feeding
temperature regulation
direct calorimetry
heat measurement
indirect calorimetry
gas measurement
homeothermic
constant temperature
endotherm
generates heat to raise the body temperature
heterotherm
variable temperature
ectotherm
body temp varies with ambient temperature
biotic factors
temp
humidity
sunlight
abiotic factors
abundance of food
competitors
reproductive males
types of sensory modality
chemical
electrical
visual
magnetoceptor
mechanics
echolocation
signals
any act or structure that influences the behaviour of organism
cue
an incidental source of information that may influence the behaviour of a receiver
innate information
behaviour that is performed for the first time an animal encounters the cue or signal
learned source of information
behaviour that is performed for the first time as a result of the animals experience of its environment
physiological cost to signalling
drains resources during growth or reproduction
co-evolution
process involving pairs of species changing traits in which the other species has reciprocal changes
4 types of fertilisation
external
internal
parthenogenesis
hermaphroditism
external fertilisation
egg and spam need to find each other
internal fertilisation
egg and spam carrying individuals find each other and mate
