Parasitism Flashcards
Hairworm lifecycle
- cricket drinks infested water
- larva enter the crickets body and feeds on its tissue, growing into an adult
- Cricket jumps into the water and drowns, hairworm eemerges and mates.
How do enslaver parasites manipulate the behavior of their host?
Hairworms alter concentration of three amino acids in the host cricket (ultimate mechanism)
Taurine
a neurotransmitter in insects and regulates the sense of thirst
Symbionts
Organisms that live on or inside other organisms
Are some symbionts mutualists?
yes
parasite’s function
consumes the tissue or body fluids of an organism on which it lives
Pathogen
parasites that cause disease
Do parasites typically harm but do not immediately kill the organisms they eat?
Yes
True or false: Parasites feed on many species but host species do not have multiple parasite species.
False: Parasites typically feed on only or or a few host species, but host species have multiple parasite species
Macroparasites
large species such as arthropods and worms
Microparasites
microscopic, such as bacteria
Ectoparasites
live on the outer body surface of the host
Endoparasites
Lives inside their host within cells or tissues or alimentary canal
Mistletoe
hemiparasitic
Hemiparasitic
they get water and nutrients from the host but also photosynthesize.