The distance between stars is measured in . . . . . . .

Which process do living organisms perform by focusing on environmental factors?

Define the following terms:
$(i)$ Unicellular organism
$(ii)$ Multicellular organism

Which of the following represents the correct meaning of Biology?

In addition to unique characteristics like reproduction,growth,development,response to environment,death,and adaptation,which other characteristic can be added to living organisms?

Which organisms exhibit awareness and response to environmental cues?