Page 10 - SAAT BIOLOGY PART 1
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SAAT BIOLOGY MR.MOHAMED ELGAYAR MRPROF.NET
• Prions infect the brain. Therefore, the group that is most
likely to be exposed to the brain are the surgeons in
human-to-human transmission.
• Prions are contained within the nervous system and
brain. If these parts are removed from the food chain, this
would provide the minimal solution to transmitting the
disease agents.
Protists are the first eukaryotes. Multicellularity evolved in
the protists. In addition, many protists have the ability to
reproduce sexually as well as asexually. Protists thrive in
damp or aquatic environments. They can also live in
symbiotic and parasitic relationships.
• Acellular slime molds go through a stage in their life
cycle in which the nucleus divides but no internal cell
walls form, resulting in a mass of cytoplasm with multiple
nuclei.
MRPROF.NET MR.MOHAMED ELGAYAR MRPROF.NET@GMAIL.COM 9
