  
A Perfect Design Of Leaves: Pores
 There is a
perfect design present in every square millimeter of every
leaf, an object which we usually consider, at first glance,
as being ordinary, "garden variety." Pores, which
are one of the essential structures of plants, are a key part
of this design. These microscopic holes (pores) that exist
on the leaves are responsible for facilitating the transfer
of water and heat as well as obtaining carbon dioxide from
the atmosphere, a gas which is necessary for photosynthesis.
In addition, pores have a structure capable of opening and
closing themselves when necessary.
Another interesting feature of the pores is that they are
mostly located on the bottom of the leaves. In this way, the
harmful effects of the sun's rays on the leaves are kept to
a minimum. If the pores, which discharge the water of the
plant, were densely present on the upper surface, then they
would be exposed to sunlight for long periods of time. In
such a case, the pores would continuously let out water in
order to prevent the plant from dying of heat. Consequently,
due to excessive water loss, the plant would wither away and
die. Allah, Who has created everything in a perfect and complete
way, created the pores as an exclusive design for plants and
thus prevented them from suffering harm due to water loss.
The pores, which are located in pairs on the surface tissue
of leaves, are shaped like beans. The concave position of
the opposite pores adjusts the openings of the pores that
maintain the gas transmission between the leaf and the atmosphere.
These openings, which are called pore openings, vary according
to the conditions of the environment (light, moisture, temperature,
carbon dioxide level) and the internal situation of the plant,
especially regarding water. The water and gas transmission
of the plant are adjusted by the pores' openings getting larger
or smaller.
There are very delicate details in the structure of these
pores which have been designed by taking all the effects of
the outside environment into consideration. We all know that
the conditions of the outside environment are subject to continuous
change: the moisture and gas ratio, the temperature and the
air quality… But the pores of leaves can adapt to all these
factors.
This system in plants, as in other systems too, can function
only if all the parts are present together. Therefore, it
is definitely beyond the realm of possibility for the pores
of plants to have come into being through evolutionary coincidences.
Allah created the pores with their very exclusive structures,
and especially designed them to serve their purposes.
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