The type of plant that grows near the river
The phylum Arthropoda contains a wide diversity of animals with hard exoskeletons and jointed appendages. Many familiar species belong to the phylum Arthropoda—insects, spiders, scorpions, centipedes, and millipedes on land; crabs, crayfish, shrimp, lobsters, and barnacles in water (Fig. 3.72).
both cells have cell walls
So yellow is mostly the classification of <em>Metal, </em>But I don't see that option here. Answer-Blue