Does anybody know the phylum and class of the horseshoe crab?

Types of scientific inquiry that biologist engage in that cannot be completely controlled

What is the compliment dna strand to the following sequence: ttgactaggcta

Recombinant dna is the merging of dna from unrelated organisms to create new genetic varieties is assembled in the lab from mononucleotides was part of the green revolution of the 1960s is pollination of one plant by another of the same species is cross-pollination of one plant by a different species