Which Genus Is Characterized by These Traits: Gram- Negative, Straight

question 20

Multiple Choice

Which genus is characterized by these traits: gram- negative, straight or slightly curved rod, polar flagella, oxidase- positive, obligately aerobic, and some chemolithotrophic members?

• A) Pseudomonas
• B) Serratia
• C) Saccharomyces
• D) Beijerinckia

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Definitions:

Lungfish

A type of freshwater fish with the unique ability to breathe air using lungs, allowing them to survive in habitats with low oxygen levels.

Lobe-Finned Fishes

A class of fish known for their fleshy, lobed, paired fins, which are precursors to the limbs of land-dwelling vertebrates.

Amphibians

A class of cold-blooded vertebrates that includes frogs, toads, salamanders, and newts, which typically have a lifecycle divided between aquatic larval stages and terrestrial adult stages.

Reptiles

A class of cold-blooded, scaly vertebrates that breathe air through lungs, including snakes, lizards, turtles, and crocodiles.