Which of the following is an acellular microorganism lacking a nucleus?
a. bacterium
b. helminth
c. protozoan
d. virus - ANSWER d. virus
Name six types of microorganisms that we are studying in this book and use each one in a
sentence. - ANSWER - Bacteria: Bacteria are all nonarchaea prokaryotes.
- Archaea: Archaea live in extreme environments.
- Protozoa: Protozoa are a group of single-celled eukaryotic organisms.
- Fungi: Fungi are eukaryotic organisms that can be unicellular or multicellular.
- Helminths: Helminths are parasitic worms.
- Viruses: Viruses are microscopic acellular elements composed of nucleic acid surrounded
by a protein coat.
Defend the argument that a web of life is a more accurate representation of evolutionary
relatedness than a tree of life. - ANSWER Web of life is more accurate because
different species cross breed instead of genes simply being passed down such as a tree of
life.
Which of the following is a microorganism that contains organelles?
a. prion
1
a. bacterium
b. helminth
c. protozoan
d. virus - ANSWER d. virus
Name six types of microorganisms that we are studying in this book and use each one in a
sentence. - ANSWER - Bacteria: Bacteria are all nonarchaea prokaryotes.
- Archaea: Archaea live in extreme environments.
- Protozoa: Protozoa are a group of single-celled eukaryotic organisms.
- Fungi: Fungi are eukaryotic organisms that can be unicellular or multicellular.
- Helminths: Helminths are parasitic worms.
- Viruses: Viruses are microscopic acellular elements composed of nucleic acid surrounded
by a protein coat.
Defend the argument that a web of life is a more accurate representation of evolutionary
relatedness than a tree of life. - ANSWER Web of life is more accurate because
different species cross breed instead of genes simply being passed down such as a tree of
life.
Which of the following is a microorganism that contains organelles?
a. prion
1
