The organism 'P' migrates to a new place, reproduces and then dies. Which of these can be 'P'?
ASalmon
BPolar bear
CArctic tern
DSiberian crane
The organism 'P' migrates to a new place, reproduces and then dies. Which of these can be 'P'?
ASalmon
BPolar bear
CArctic tern
DSiberian crane