Circadian rhythms are biological changes that occur on a 24 hour cycle. The correct option among all the options that are given in the question is the last option or the fourth option. This is the type of system that happens in plants, animals, cyanobacteria and fungi. I hope the answer comes to your help.
The ability to think logically about abstract propositions is indicative of the stage of __formal operations___.
According to Piaget Theory, Children develop cognitively and process information as they grow and mature in four stages which are
- Sensorimotor Stage
- Preoperational Stage
- Concrete Operational Stage
- Formal Operational Stage
The Formal Operational Stage spans from adolescence through adulthood. Here children develop from analyzing and interpreting concrete objects to improving their logic reasoning. They are able think and analyse abstract situations and hypothetical principles.
See related answer here :brainly.com/question/14847765