Biology, asked by srini2k12pdlb4k, 11 months ago

y r trees tall???????????

Answers

Answered by wielenthemant
0
because his roots is spread into many parts
Answered by soyam4up90i2p
0
Heya mate!!!!!!!


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Trees grow in two ways, in girth and height. Essentially, each year they put on an outer layer of growth. They require sunlight to acquire the energy they need to sustain themselves. So, like most plants they will orient themselves to maximize their exposure. Depending on the surrounding competition for sunlight they will grow to a height that allows them to maintain the level of photosynthesis needed. Since each branch produces its own energy it will continue to grow out to the sun as long as there is exposure. They are remarkable in their ability to adapt to different environments. Consider a maple grown out in the open field. It will spread wider in order to obtain that sunlight. Take that same species in a grove of trees and it will grow much taller with less foliage. The lowest limbs are unable to acquire sufficient light to produce enough photosynthate to maintain itself and thus dies. Take a coast redwood and you've now got a species that has evolved to deal with fires (thick bark) and the ability to obtain much of it's water needs from the fog rolling in.  They are truly wonders of the natural world.

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