B. Had lived only in volcanic regions, and we're destroyed by lava flows.
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Answer:
Domain archaea holds microorganisms that is bacteria that has cell wall consist up of peptidoglycan. The Eukarya differ from the Archea and Bacteria in that their cells are eukaryotic, meaning they consist up of a "membrane enclosed nucleus" and "other membrane enclosed organelles".
Explanation:
Answer:
Mass extinction occur when the environment is not favourable.
Explanation:
Mass extinctions occur on the earth when there is sudden change in the environmental conditions for an organisms that is not good for the survival of that particular organisms so they extinct from the earth surface. The example of mass extinctions are dinosaurs. These dinosaurs were extinct due to change in their environment that decreases the availability of food for them so due to no available food, the dinosaur extinct from the earth.
The staff unit should conduct Debriefing.
Debriefings are usually in small unit and crew activities, and this is in context
of a training shown to improve Knowledge, Skills, and Abilities (KSAs)
significantly when conducted formally using pre-defined measures of performance
derived from front-end analysis. Debriefings are very effective when conducted
actively between the person of the immersive activity and the assessment or observation
personnel.
The number of different sequences of base-pairs in a particular genome.