Examlex
The first human being to step out onto the surface of another world was:
Prokaryotic
Describing organisms whose cells lack a nucleus, including bacteria and archaea, characterized by a simpler organizational structure compared to eukaryotic cells.
Autotroph
Organisms that produce their own food from inorganic substances, using light or chemical energy.
Cyanobacteria
Photosynthetic bacteria that are often found in aquatic environments, capable of producing oxygen through the process of photosynthesis.
Aerobic Respiration
The process of producing cellular energy involving oxygen. It's the way most cells generate ATP, with carbon dioxide and water as byproducts.
Q3: Astronomers have found that the level of
Q7: An astronomer who is observing visible light
Q16: Within a constellation, a smaller, recognizable pattern
Q19: One way in which the ozone layer
Q26: The process by which Venus became so
Q30: What is the most important reason that
Q42: A writer of mystery novels wants to
Q58: An astronomer discovers a new star and
Q74: Which of the following was a provision
Q93: The number of gangs in the United