MCQ
By definition, an ectotherm.
- ✓Obtains most of its heat from its environment.
- BDerives most of its heat from its own metabolism.
- CIs warm$-$blooded.
- DIs cold$-$blooded.
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$(I)$ Compound epithelium is made of multi layered of cells.
$(II)$ Limited role in secretion and absorption.
$(III)$ To provide protection against chemical and mechanical stresses.
$(IV)$ It present in $PCT$.