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Ascaris lumbricoides is an endoparasite. (a)Name the genus to which it belongs. (b)State the habitat of the organism. (c)tate three ways in which the organism is adapted to...

Ascaris lumbricoides is an endoparasite.
(a)Name the genus to which it belongs.

(b)State the habitat of the organism.

(c)tate three ways in which the organism is adapted to living in its habitat.

(d)Mention three ways of preventing spread of the parasite.

Answers

johnson
(a) Ascaris;

(b) Intestines of humans/Pig Acc. large intestine/duodenum.

(c) Adaptations:
- Has two hosts to ensure survival;
- Lays numerous eggs to increase chances of survival;
- Has thick cuticle which protects it against digestive enzymes of the host;
- Eggs have a protective shell to survive harsh environmental conditions;
- Has tissues tolerant to low oxygen/can survive under low oxygen concentration;
- Produce anti-enzymes to counteract the effect of the hosts enzymes;
- Has a muscular pharynx through which it sucks digested food from the hosts intestine;

d) Prevention
- Proper sewage disposal/proper use of toilet facilities;
- Maintain proper personal hygiene/washing hands after visiting the toilet;
- Boiling/treating drinking water;
- Proper cleaning of vegetables and fruits;
johnson mwenjera answered the question on February 11, 2018 at 16:47

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