It really is worth your effort! These foods provide pure nutrients for your liver to cleanse and rebuild the blood to provide you with more energy and a healthy body. Organic fruits and vegetables also contain higher amounts of Vitamin A, Vitamin C, and sulfur, which all boost liver detoxification and cleansing. Broccoli, Brussels sprouts, kale, collards, apples, onions, garlic, and squash are all great choices. Also see: 10 Foods to Cleanse and Care for Your Liver.
Then we discussed the phylum Arthropoda, because both crayfish and grasshoppers are arthropods. Insects, arachnids, and crustaceans are the main arthropods we know, and they all have a protective exoskeleton and jointed appendages. Wikipedia says they are like Swiss Army knives, they can do all sorts of things.
Crayfish and grasshoppers are familiar sights and are easily recognizable. But knowing how to explain the main differences between them could make an interesting school project on the natural world. Both are interesting creatures and a few well selected facts will enlighten any report.