pp 6 Flashcards
nematode survival generally depends on what two things
abiotic and biotic factors
weather, climate, and shelter are called what
abiotic
food availability, predation/disease, competition, host defense are all called what
biotic factors
low calorie does what to life spand
expands
what temp causes higher longevity?
low
reproduction does what to life span
decreases
oxygen levels that allow higher longevity
low
what is hypobioisis
lower metabolism
what is ametabolism
no metabolism
a form of dormancy where the organism possesses endogenous controls over the duration of the state.
diapause
initiated by environmental factors becoming unfavorable or environmental factors serving as cues
faculataive
pre programmed
obligaite
a form of readily reversible dormancy in the presence of unfavorable environmental conditions.
quiescense
high pheromone, low food factpr
J1 molts to dauer
low pheromone, high food factor
J1 molts to j2 to j3. dauer molts to J4
high pheromone, high food factor
keeps molting, tno daur
what does anhydrobiosis mean and where can it be found?
life without water, quiescence
bound=
vicinal
lamellar phase with more than what persent of water. but when drop below you get what
- hexagonal phase 2
what does rehalose do?
protects proteins, maintains membrane fluidtiy, limits phase transitions within lipid bilayer, may replace vicinal water , inhibits free radical formation, mobilized into glucsoe upon hydration
exclusion and removal are what response
innate immune
humoral system and cellular system are what response are what
adaptive
erthrocytes and megakaryocytes, are they a part of the immune blood cells
no
skin, ilia, tears, secretions, enzyme, phagocytic cells are appart of which response
innate immune
