The answer regarding the components of an arthropod's nervous system would be item C. It consists of brain, nerve chord, and ganglia. The brain is located dorsally, while the nerve cord together with the ganglia is ventrally structured — extending on each segment of an arthropod’s body.
When coming to building something, some materials are more vulnerable to water and can wear away easier. Some can keep the water in, so depending on the material, the water quality can be better sustained.
D. Algae do not have organs or specialized tissue. I think...
It all just depends on what genes they carry. You can create a Punnet Square to determine the percentage of obtaining a specific disease.
