Instruct: Identify the main category of Biorxiv papers based on the titles and abstracts
Query: The entomopathogenic nematode Steinernema hermaphroditum  is a self-fertilizing hermaphrodite and a genetically tractable system for the study of parasitic and mutualistic symbiosis
4
The categories of this paper are: neuroscience
19
The categories of this paper are: epidemiology
13
The categories of this paper are: animal
16
The categories of this paper are: microbiology
5
The categories of this paper are: cell
22
The categories of this paper are: physiology
7
The categories of this paper are: ecology
32
The categories of this paper are: zoology
25
The categories of this paper are: bioengineering
8
The categories of this paper are: genomics
26
The categories of this paper are: biochemistry
1
The categories of this paper are: bioinformatics
11
The categories of this paper are: cognition
30
The categories of this paper are: scientific
23
The categories of this paper are: immunology
17
The categories of this paper are: molecular