biologischem
Biologischem is the dative singular form of the German adjective biologisch, which means biological or related to biology. In German grammar, biologisch describes things connected with biology, living systems, or biological processes. The form biologicalem (biologischem) appears when the adjective is declined without a definite article and the noun it modifies is masculine or neuter in the dative singular, or in certain fixed prepositional phrases.
In practice, you encounter biograph-language examples such as mit biologischem Material (with biological material) or in
It is helpful to distinguish biologicalm from related forms: biologischer is the dative or nominative masculine/neuter
Usage of biological terms, including forms like biologischem, is common in scientific, medical, and academic writing
See also: Biologie, biologisch, grammatik declension of adjectives.