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the process of water loss and intake by a frog are what and what respectively...

the process of water loss and intake by a frog are what and what respectively jamb 2002 biology question 5?

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Answers (2)

isaaq
4 months ago
Answer
evaporation and osmosis
Gaby
4 months ago
The near infrared reflection peak in some
frogs has been speculated to be either for
enhancing crypticity, or to help them with
thermoregulation. The theoretical
background for the thermoregulatory
processes has been established before, but
little consideration has been given to the
contribution from the frogs' reflection
spectra differences. In this investigation, the
reflection spectra from a range of different
species of frogs were taken and combined
with precise surface area measurements of
frogs and an approximation to the mass
transfer coefficient of agar frog models.
These were then used to simulate the
temperature and water evaporation in
anurans with and without the near infrared
reflective peak. We have shown that the
presence of the near infrared reflection
peak can contribute significantly to the
temperature and evaporative water loss of a
frog. The significance of the steady-state
temperature differences between frogs with
and without the near infrared reflection
peak is discussed in a realistic and an
extreme scenario. Temperature differences
of up to 3.2°C were found, and the
rehydration period was increased by up to
16.7%, although this does not reduce the
number of rehydration events between
dawn and dusk.
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