Answer:
the correct answer would be
A. atoms, molecules, cells, tissues, organs
Archaebacteria are obligate anaerobes, i.e., they flourish in the strict absence of oxygen., and that is why only they can undergo methanogenesis.
The cell membranes of the Archaebacteria are composed of lipids.
The rigid cell wall provides shape and support to the Archaebacteria.
Answer:
The major biomes in Canada are Tundra, Boreal Forest, Mountain Forest , Grassland, and Deciduous Forest. Tundra is the dominant land type of the Arctic and subarctic regions.
Explanation: