The purpose of meiosis is to reduce the normal diploid cells (2 copies of each chromosome / cell) to haploid cells, called gametes (1 copy of each chromosome per cell). In humans, these special haploid cells resulting from meiosis are eggs (female) or sperm (male). In yeast cells, they are spores.
Third-party warrant is a derivative issued by the holders of the underlying instrument. Suppose a company issues warrants which give the holder the right to convert each warrant into one share at $500. This warrant is company-issued.
The question of classification of such an accessory is whether the hose should take on the classification of the device (which could be Class IIa or higher). The directive states that accessories can be classified in their own right. In the case of the flexible hose, this would considered a Class I product.