-Two divisions of the nervous system: central and peripheral. -Central nervous system consists of the brain and spinal cord. -Peripheral nervous system consists of the sense organs (eyes, ears, taste buds, olfactory receptors, touch receptors) and the nerves which connect the spinal cord with the rest of the body.
Ripening Temperatures. After the chill period, pears ripen best between 65 and 75 degrees F. Oregon State University Extension indicates that Bartlett pears take only four to five days to ripen, while Anjou takes up to 10 days. Both Bosc and Comice pears need between five and seven days to ripen. The days indicated for ripening are a guide but not law. Pears ripen faster when they get a longer chill period and take longer if the chill period was cut short. The best way to tell is to press your finger into the flesh near the stem.
Most tree fruits are ripe when they give slightly to the touch and have a fruity, fragrant odor. Pears need some unusual care during harvest and storage to help them ripen to sweet, juicy perfection. They're harvested differently than other fruits and often undergo a cooling or chilling period, once picked.