Question

prokaryotic diversity

1. the term microbiota refers to which of the following?

a. all microorganisms of the same species
b. all of the microorganisms involved in a symbiotic relationship
c. all microorganisms in a certain region of the human body
d. all micro

1. the term prokaryotes refers to which of the following?

a. very small organisms
b. unicellular organisms that have no nucleus
c. multicellular organisms
d. cells that resemble animal cells more than plant cells

1. archaea and bacteria are most similar in terms of their_______.

a. genetics
b. cell wall structure
c. ecology
d. unicellular structure

1. the term “deeply branching” refers to which of the following?

a. the cellular shape of deeply branching bacteria
b. the position in the evolutionary tree of deeply branching bacteria
c. the ability of deeply branching bacteria to live in deep ocean waters
d. the pattern of growth in culture of deeply branching bacteria

1. which of the following bacterial species is classified as high g+c gram - positive?

a. corynebacterium diphtheriae
b. staphylococcus aureus
c. bacillus anthracis
d. streptococcus pneumonia

Explanation:

1. Microbiota refers to all the microorganisms in a particular environment, and in the context of the human - body, it's all microorganisms in a certain region of the human body.
2. Prokaryotes are unicellular organisms that lack a nucleus.
3. Archaea and Bacteria are both unicellular organisms. Their most obvious similarity is in their unicellular structure.
4. "Deeply branching" bacteria refer to their position in the evolutionary tree, being close to the root of the tree of life.
5. Corynebacterium diphtheriae is classified as high G + C gram - positive bacteria.

Answer:

1. c. all microorganisms in a certain region of the human body
2. b. unicellular organisms that have no nucleus
3. d. unicellular structure
4. b. the position in the evolutionary tree of deeply branching bacteria
5. a. Corynebacterium diphtheriae