Paracitism Flashcards
1
Q
ox peckers
A
- -“clean” ticks from animal orifices
- have taste for blood
- keep wounds open
- not mutualistic
2
Q
Ectoparasite
A
lives on the body
3
Q
Endoparasite
A
lives in the body
4
Q
Parasitoid
A
lives inside the body and kills the host
-limit to growth because of limited resourse
5
Q
Brood parasites
A
Invade the nest
6
Q
Wasp/aphid
A
plant emits pheremones to let wasps know that there’s an aphid
- wasp lays eggs inside aphid
- wasp eggs hatch and larva eat aphid
7
Q
Parasites
A
Don’t kill host because they need it for survival
8
Q
parrots vs lice
A
light parrots selected for light ticks on their body
9
Q
Macroparasites
A
- big enough to see with eyes
- don’t multiply inside of host
- aggregate –> “clump distribution”
- worms are common
10
Q
tapeworm life cycle
A
- person eats bad hotdog
- passes tapeworm in stool
- pig ingests tapeworm
- eggs hatch and invade pig’s muscle tissue
- larva form cysts in muscle tissue
- cysts can survive being undercooked
11
Q
Ascaris
A
Nematod that infects people and blocks their intestines
12
Q
Schistosome
A
- macroparasite
- intermediate host = snails
- definitive host = people (vertebrates)
- immune system forms calcareous deposits around it, blocking spleen and excretory passages
13
Q
3 methods of mind control
A
- Release chemicals that stimulate neuro-motor control
- Highjack central nervous system
- molecular mimicry proteins that are used to manipulate behavior
14
Q
Horsehair worm
A
- eggs laid in water
- larva infect aquatic insects (intermediate)
- cricket (definitive) eats intermediate
- develops inside cricket and makes it commit suicide in water
15
Q
spiny headed worm
A
makes isopods have risky behavior
-more succeptible to starlings
