HOM (1)
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H O M E O S T A S I S<br />
I N P L A N T S<br />
.<br />
Homeostasis is the property of living<br />
organisms in which internal systems<br />
are kept in balance.<br />
Angiosperms or<br />
flowering plants<br />
maintain homeostasis<br />
by keeping their<br />
stomata (opening in<br />
the underside of a leaf<br />
that allows carbon<br />
dioxide to diffuse into<br />
and out of the leaf)<br />
open just enough to<br />
allow photosynthesis<br />
to take place but not<br />
so much that they lose<br />
an excessive amount<br />
of water. They<br />
regulate the opening<br />
and closing of their<br />
stomata to balance<br />
water loss with rates of<br />
photosynthesis.<br />
Plants stay cool in the<br />
desert heat through<br />
their reflective surfaces,<br />
reduced leaves, or<br />
leaves that are parallel<br />
to the sun. Tropism<br />
occurs when a plant<br />
grows towards or away<br />
from a stimulus. Plants<br />
must balance the heat<br />
they gain with the heat<br />
they lose.
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