Question

Lexi drew a diagram to compare eubacteria and archaebacteria. Which label belongs in the area marked y?

A. Take different shapes
B. Are single-celled
C. Live in Antarctic ice
D. May be autotrophs

Answer 1

C. Live in Antarctic ice

Step-by-step explanation:

Archaebacteria are the prokaryotic organisms that do not have peptidoglycan in their cell walls which is otherwise a key chemical of cell wall of eubacteria. Archaebacteria are adapted to live in extremes of climatic conditions. They are mostly found in areas with extremely higher or lower temperatures, higher salt level etc. So archaebacteria can survive under the cold climate of Antarctica while eubacteria cannot.

Answer 2

Answer;

C. Live in Antarctic ice

Explanation;

• Archaebacteria are the oldest living organisms on earth. They are prokaryotes and unicellular. Archaebacteria are found in very harsh conditions such as at the bottom of the sea or in volcanic vents.
• They slowly gave way to modern organisms when the Earth’s conditions settled down and oxygen was introduced to the atmosphere.
• There are three phyla, or groups, of archaebacteria. methanogens, which harvest energy into methane, halophiles which live in extreme salt conditions and thermoacidophiles which survive in extreme temperature conditions.