The oldest living organisms on Earth are plants Some bristle
The oldest living organisms on Earth are plants. Some bristlecone pines are over 4600 years old, and a desert creosote bush is known to be 10,000 year old. What special feature of plants provides for this incredible longevity? How do plant differ from animals in their pattern of growth and development? (also explain how trees grow upward as too how a nail driven into a 10year old tree will be at the same height 10 years later)
Solution
The oldest living organisms on Earth are plants. Some bristlecone pines are about 4,600 years old, and a desert creosote bush is known to be 10,000 years old. see actually it is just a matter of definition. no individual cells last that long time and all the original tissue is typically long dead. We generally think of it as continuing because the new growth is against the old. growth is continued and new cells are generated due to plants anaomy structure. they maintain their gene pool.
trees grow upward as too how a nail driven into a 10year old tree will be at the same height 10 years later because tree grows from the top up.
Differences between Plant Growth and Animal Growth:
in plant growth , generally growth involved most of the parts and increase in the number of parts. growth generally continuw throughout the life of a plant.
growth can be sessional. it depends on the seassion. it can quit the poisonius things during winter seasons.
Plant growth carries well defined growing regions like stem, leaf.
seedling has no effect in adult plant.
growing pattern differs species to species in case of plant growth.
new parts can be generated around the older ones.
animal growth here growth takes place before the maturity period. after a certain age there is no growth in body organs.
there is no increase in number of body parts.
growth pattern is absent generally
the young one is generally identical the old or adult one. ( sexual maturity may be an exception)
