The posted coordinates place you in the middle of the Botanical Gardens of Glasgow; home to over 9,500 species of plants.

Somewhere nearby, a cache is hidden - but you will need to answer some Biology questions in order to find it! All of the questions are based on the Scottish National 5 Biology curriculum (equivalent to the GCSE Biology curriculum in the rest of the UK) so should be answerable by anyone who has studied the subject up to (or beyond) age 16, though you might need to do a little bit of revision and/or additional research first.
Ecology
An ecosystem receives 1,040,000 units of energy from the sun. Of this energy, 95% is not used in photosynthesis. The amount of energy captured by the producers in this ecosystem is AB,000.
Genetics
Each strand of DNA is made up of 4 bases; T, A, G and C. The full name of base G contains a number. If this number is X then C = X - 1.
Biochemistry
The maximum possible number of ATP molecules produced per glucose molecule by the full by aerobic respiration process is X.
The maximum possible number of ATP molecules produced per glucose molecule by the full fermentation process is Y.
DE = X - Y
Botany
The diagram below shows part of the internal structure of a leaf.

The number representing a palisade is F.
The number representing a vein is I.
Inheritance
Individuals with the dominant allele B have brown eyes.
Individuals with the recessive allele b have blue eyes.
Two heterozygous individuals have a child together. The probability that this child has brown eyes is GH %.
Cell Biology
Bacteria have small, circular sections of DNA in their cytoplasms. One of these sections would be called a X.
The number of letters in X is J.
Final Coordinates
The cache can be found at: N55° AB.CDE, W004° FG.HIJ
Please be careful when retrieving and replacing the cache as it is located in a busy area.
The Series
The Physicist's Cache: GC83KVH
The Geologist's Cache: GC83MYG
The Biologist's Cache: GC83XTX