One verse

Srimad Bhagavatam 2.8.14

2.8.14

यस्मिन् कर्मसमावायो यथा येनोपगृह्यते । गुणानां गुणिनां चैव परिणाममभीप्सताम् ॥ १४ ॥

yasmin karma-samavayo yatha yenopagrhyate gunanam guninam caiva parinamam abhipsatam

yasmin
in which
karma
actions
samavayah
accumulation
yatha
as far as
yena
by which
upagrhyate
takes over
gunanam
of the different modes of material nature
guninam
of the living beings
ca
also
eva
certainly
parinamam
resultant
abhipsatam
of the desires.

Then again, kindly describe how the proportionate accumulation of the reactions resulting from the different modes of material nature act upon the desiring living being, promoting or degrading him among the different species of life, beginning from the demigods down to the most insignificant creatures.