Glucose and oxygen!!!
CO2 + Water in the presence of sunlight results in glucose + oxygen
The crayfish have its nerve cord on the ventral side rather than on the dorsal side. The ventral side is under the Crayfishes' exoskeleton, as opposed to the dorsal side where the exoskeleton is . If it is attacked it will be from the dorsal side and the nerve cord would be snapped easier. The function of the nerve cord is that if it gets attacked by a predator they will go for the top and it will still be able to move.
move in a circle on a central axis.
The most specific classification of organism is D species. it is considered the basic unit of biological classification or a taxonomic rank. It might bee also define as the largest group of organisms . there could be found classical forms, fixed species and species that could change.
I'm not 100% sure which biology class you are in are you doing the moth activity? If so then I would believe that the light moth would be easier to see on a dark tree trunk
