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Question
Select the incorrect statements
Options:
A .  An overwhelming majority of animals and nearly all plants maintain a constant internal temperature
B .  An orchid growing as an epiphyte on a mango branch is an example of commensalism.
C .  In brood parasitism, the parasitic bird lays its eggs in the nest of its host and lets the host to incubate them.
D .  Most of the animals found in the polar regions are very small
Answer: Option A
:
A
Warm blooded animals like birds and mammalsare the only animals that can maintain a constant internal temperature, most of the animals do not regulate their internal temperature.
The largest purely terrestrial animal found in Antarctica is a flightless midge (a flightless fly) that grows no more than 13mm in length. All other Antarctic animals are either smaller than this or migrate spending some of the year away from the deep south and the extreme cold. They either swim or fly away - and back again.
An orchid growing as an epiphyte on a mango branch is an example of commensalism, because the orchid derives its nourishment from the mango tree, but the mango tree however is not harmed.

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