What type of molecule forms the antibodies found in the human immune system?

What happens when a magniseum ion ia atracked to a chlrene ion

Discuss cell surface transport in the structure of constituents

Anew organism has been discovered. this organism has a bilaterally symmetric unsegmented body. it's capable of moving on its own with a muscular appendage and is encased in a large shell that seems to be attached to its body. based on this evidence, which phylum would this new animal likely be classified into? a. arthropoda b. echinodermata c. nematoda d. mollusca