General Parasitology. By. Dr./ Ola Abdell Halim Abu Samak. Assist. Prof. of Parasitology, Zoology Department, Damietta Faculty of Science, Mansoura University. Syllabus of the Lecutures for 3rd year Students of Zoology Department. *Dr. Ola Abdell Halim Abu Samak *Office hours:
Dr./ Ola Abdell Halim Abu Samak
Assist. Prof. of Parasitology,
Damietta Faculty of Science, Mansoura University
3rd year Students of Zoology Department
Increasing the familiarity with the parasites and host relations
Recognizing the parasitism among the other biological relationships
Comparing between different biological relationships and monitoring in the surrounding environment
Identifying the biological relationships
Two organisms simply travel together
Neither organism is helped or harmed
Usually one is transporting the other
One benefits but the other isn’t harmed and receives no benefits
Usually one feeds off the “wastes” of the other partner.
*Feed on scraps left by shark
The line between some the categories may be difficult to draw.
A parasite in one organism may be a commensal in another organism.
How much “harm” is necessary before a commensal becomes a parasite?
If an animal lives inside another, but is not actively causing harm, is it a parasite?
If an animal temporarily feeds upon another, but leaves its prey alive, is it a parasite?
If an animal lays its eggs in another, and the young consume the host from the inside-out, is it a parasite?
In a straight forward situation a small organism (Parasite) has the potential to harm a larger organism (Host), and relies on said host for nutrients and shelter (a Niche).
The parasite generally has a much higher reproductive capability compared to its host.
Unfortunately, parasitism is seldom this clear cut.
2 – Required or not
3- Amount of time spent
Direct life cycle