@Uyap:
To have a mind (citta), it need rūpa (even in arupavacara (Formless realm) there is also trace of rūpa, see:Rūpa (Material Form) – Table ). In the Rūpavacara, there is one mindless plane (Asanna), see: Bhava and Bhavanga – Simply Explained!.
There are four causes which produce rūpa. They are:
(1) kamma
(2) citta
(3) utu
(4) āhāra
See Rūpa – Generation Mechanisms and Rūpa Kalapas (Grouping of Matter).
There are four different types of birth of Beings. Those are namely:
(1) Egg born (Andaja)
(2) Womb born Beings (Jalabuja)
(3) Moisture born beings (Sansedaja) and
(4) Spontaneous Birth (Opapatika)
What happen to matter after it’s lifetime end?
See Root Cause of Anicca – Five Stages of a Sankata.