parasites

Question 1

what is a parasite

Answer 1

feed on host organisms and can be ectoparasites or endoparasites.

Question 2

is head louse an endo or ectoparasite

Answer 2

ectoparasite

Question 3

what are some adaptations of head louse

Answer 3

-claws to hold onto hairs
-eggs glues yo base of hairs

Question 4

how are headf lice transferred

Answer 4

direct contact

Question 5

where do adult tapeworms live

Answer 5

adult humans (primary hosts)

Question 6

what are problems for tapeworm

Answer 6

-gut is hostile
-presence of digestive secretions.
-peristalsis
-PH changes
-host’s immune systems
-if host dies so does tapeworm

Question 7

what are some adaptations of tapeworm

Answer 7

thick cuticle protects against hosts immune system.
-produce enzyme inhibitors to prevent digestion by hots enzymes.
-reduced gut and feeds by absorbing pre-digested nutrients through cuticle.
-large sa: v ratio
-has a scolex( head ) with suckers and hooks to attach to small intestine wall.
-hermaphrodites so each proglottid (body segment) has male and female reproductive organs.
-produce a lot of resistant eggs.