somatic effects, radiation effects such as cancer that occur in the exposed individual, as opposed to genetic effects, which occur in the individual's offspring.omatic effects, radiation effects such as cancer that occur in the exposed individual, as opposed to genetic effects, which occur in the individual's offspring.
It varies from spider to spider. Most have eight - four main ones  and 4 small back ones.   It depends. some have 4 some have 2.   It varies by species, but usually tâ¦hey have 6 or 8 eyes.   some have 8, some have 6 8.
The class Araneae contains the spiders, a large and fascinating group. Spiders have the typical arachnid characteristics-eight legs, pedipalps, chelicerae and two major body regions. However, the chelicerae have lost the inside thumb and the outside hinged segment has become a fang.