Let's add the missing piece of information:
In this part of the lab we'll be taking some reasonable precautions to make sure that we don't allow undue contact between cat/dog parasites and the interior of our bodies.
Why are we more vigilant about zoonotic diseases for the Gametogenesis lab?
[Please remember to wash your hands!]
- The samples are fresh (they were very recently a part of a living organism.)
- The samples are from warm-blooded animals which have similar diseases to ours
- The samples are from mammals, so their parasites are closer evolved to us
- We are using sharp tools and razor blades, making access into our bloodstream potentially easier
All answers indicates the need for necessary precautions in the course of the experiment.
Step-by-step explanation:
A zoonosis (plural zoonoses, or zoonotic diseases) is an infectious disease which originated from bacteria, viruses, or parasites that moves from non-human animals (mainly vertebrates) to humans. Major contemporary diseases like Ebola virus disease and salmonellosis are zoonoses.
Zoonoses have varying forms of transmission. In direct zoonosis the disease is mainly transmitted from other animals to humans via media e.g. air (influenza) or via bites and saliva (rabies).
Transmission could also be through an intermediate species (known as a vector), that serve as host for the disease pathogen as it is not affected by the diseases presence.
The need to be vigilant in the course of the lab experiment to avoid infection and transmission from one Hunan to another.