Why are real raspberries called 'raspberries'?
The raspberries have the fuzz because the fruit actually is the food surrounding a seed. If you look real close a raspberry is a bunch of seeds. Each little seed has a "hook" which nature provides to help that seed grab onto something passing by and carry it to where it can drop off and grow into new raspberries.
Chemicals in the raspberry correspond with the neurotransmitters on the tongue for something called the gustatory response, which signals to the brain which we interpret as salty, sweet, bitter, sour, and "savory" . Its not really how do raspberries get their taste, but how do we interpret the chemicals produced by the raspberry. When raspberries ripen the starch in them change into glucose and fructose (sugar). So the flavour depends on how ripe it is…
Yes, and they all will pollinate each other. This information is incorrect. I work at a nursery. Black and red raspberries should not be planted near each other. They need to be at least 700 feet apart. The black raspberries contian a virus that is harmless to them, yet is destructive to the red raspberries.