What structures specific in plant cells but not in animal cells include

There are two structures in plant cells that animal cells do not have, the first is a cell wall, the second is the chloroplast. The cell wall maintains its shape the chloroplast is what allows plants to undergo photosynthesis.

When measuring an earthworm you would most likely have to go with centimeters

Six amino acids have side chains that are polar but not charged. these are serine (ser), threonine (thr), cysteine (cys), asparagine (asn), glutamine (gln), and tyrosine (tyr). these amino acids are usually found at the surface of proteins, as discussed in the proteins 2 module.