The answer your looking for should be flowering plants
Answer:
C. <em>Clostridium</em> and <em>Bacillus</em>.
Explanation:
<em>Bacillus </em>and <em>Clostridium</em> are the gram-positive bacteria and form endospores. Endospores are the resistant dormant structures formed by some gram-positive bacteria.
These bacteria form the endospores within their vegetative cells. The endospores are highly resistant to environmental stress conditions and make these bacterial genera the dangerous pathogens.
Answer is [ C ]
The reason is none other than,
→ Prokaryotes are commonly referred as most primitive organisms
They lacks membrane - bound organelles , they are unicellular organisms who does not posses a true nucleus .
→ Eukaryotes are most likely advanced organisms , they posses a true nucleus & membrane - bound organelles as well. There are unicellular & multicellular eukaryotes
eg : Unicellular eukaryotes like Protists
It is intended to increase immunity against that antigen back to protective levels, after memory against that antigen has declined through time.
