Questions

Data registers - can be assigned to a variety of functions by the programmer. They can be used with any machine instruction that performs operations on data.
Address registers - contain main memory addresses of data and instructions or they contain a portion of the address that is used in the calculation of the complete addresses.

Bacteria and archaea are similar in possessing prokaryotic cells.

NASA's spacecraft "JUNO"is sent for Jupiter mission.

Scientists believe that , about 4.6 billion years ago, the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star called a supernova.

Amphibians are one of the most sensitive groups to change, whether that is caused by habitat loss, invasive species, disease, trade or climate change. Their sensitivity to environmental threats has been generally linked to the observation that amphibians are characterized by a rather permeable skin. Given their complex life cycles and other traits, amphibians are often recognized as indicators of ecosystem health.