Annuals are planted in the spring and will die off in the fall, or usually when the first hard frost hits.
Perennials will become dormant in the fall/winter and "come back to life" next spring.
Some plants can be considered as both depending on where you live.
For example, a Hibiscus won't make it through an Up-State NY winter (in which case it would be an annual), but it will last year round in Florida, or CA.
Perennials are classified by Zone Hardiness. Lower the hardiness zone, the colder the weather the plant can handle. A geographical area that is inn Zone 3 means that the average winter temps go down to -20 deg F. Zone 10 means that the ave. winter temp. is around +30 deg F.
Perennials are plants that live for more than two years, regrowing each spring from the same root system. Non-perennials are plants that complete their life cycle within one growing season. This difference in life span is due to variations in genetic programming and environmental adaptations among different plant species.
There is no difference between amongst and among. One can use these words interchangeably. Amongst is more of an "old-fashioned" way of saying among. However, among is more popular to use.
Amongst is more posh from England but among is from the USA.
vagninas
Difference between Among and Between : Among is used when we talk about things which are part of a group or mass of objects. Between is used when we refer to two things which are clearly separated.
Number of neutrons in the nucleus.
There is no difference between amid and amidst or among or amongst. amidst and amongst are the obsolete words already replaced by amid and among, however in some cultures these words are still preserved.
genetic variation
Longevity
The difference among different types of switching devices is in the features and the functions that they have. The two main types are packet switching and circuit switching devices.
I dont no
behavioral isolation