die Biologie
biology
The science that deals with living organisms and the processes of life.
In der Schule war Biologie mein Lieblingsfach.
At school, biology was my favorite subject.

biology
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biology
The science that deals with living organisms and the processes of life.
In der Schule war Biologie mein Lieblingsfach.
At school, biology was my favorite subject.

The word is composed of the Greek parts 'Bio-' (life) and '-logie' (study, science). This pattern is found in many scientific fields, such as geology or psychology.
Die Endung „-logie“ deutet immer auf eine Wissenschaft hin.
The ending '-logie' always indicates a science or field of study.
When referring to the university or school subject, 'Biologie' (biology) is often combined with verbs such as 'studieren' (to study), 'unterrichten' (to teach), or 'eine Prüfung haben in' (to have an exam in).
Meine Tochter möchte später Biologie studieren.
My daughter would like to study biology later.
You can recognize this specific meaning from the fact that 'Biologie' (biology) is complemented by a genitive object or by 'von' + dative to show whose life processes are meant.
Die Biologie der Tiefseequalle ist noch weitgehend unbekannt.
The biology of the deep-sea jellyfish is still largely unknown.
chemistry
'die Chemie' and 'die Biologie' are both natural sciences, but they deal with different questions. You use 'Chemie' when it is about substances and their transformations. You use 'Biologie' when it is about living organisms, plants, animals, humans, and life processes. The words can be confused especially at school and university because many topics are connected. If you are talking about a reaction between substances, 'Chemie' fits. If you are talking about cells, animals, or plants, 'Biologie' fits.

Am Montag erklärt die Lehrerin in Biologie den Aufbau einer Zelle.
On Monday, the teacher explains the structure of a cell in biology.
Für den Test in Chemie wiederholt du die wichtigsten Reaktionen.
For the chemistry test, you are reviewing the most important reactions.