biologiya

/bioloɡija/

Cases

SingularPluralWhen to use it
nominativebiologiyathe biologybiologiyalathe biologiesthe plain dictionary form — the doer of the sentence
genitivebiologiyanıthe biology'sbiologiyalanıthe biologies'the owner — whose it is
accusativebiologiyanıthe biology (as the object)biologiyalanıthe biologies (as the object)a specific, known object — whom or what
dativebiologiyağato the biologybiologiyalağato the biologiesdirection or recipient — to where, to whom
locativebiologiyadaat / in the biologybiologiyaladaat / in the biologieswhere it is; also having — mende bar, "I have it"
ablativebiologiyadanfrom the biologybiologiyaladanfrom the biologieswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
mybiologiyammy biologybiologiyalarımmy biologies
yourbiologiyangyour biologybiologiyalarıngyour biologies
his / herbiologiyasıhis / her biologybiologiyalarıhis / her biologies
ourbiologiyabızour biologybiologiyalarıbızour biologies
you all'sbiologiyağızyou all's biologybiologiyalarığızyou all's biologies
theirbiologiyalarıtheir biologybiologiyalarıtheir biologies

The overlap in the last rows is real, not a mistake: biologiyaları can mean "his / her biologies", "their biology", or "their biologies" — context decides.