Examlex
The Archaea generally lack which of the following that are normally found in gram-negative bacteria?
Savanna
A grassland ecosystem characterized by the trees being sufficiently small or widely spaced so that the canopy does not close, allowing sunlight to reach the ground and support an underlayer of grass.
Nekton
Aquatic animals that are able to swim and move independently of water currents, such as fish, whales, and squid.
Bottom-dwelling Organisms
Refers to organisms that live on or near the bottom of bodies of water.
Ecotone
A transitional zone between two different ecosystems or biomes, often rich in species diversity.
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