Asalamander relies on hydrogen bonding to stick to various surfaces. therefore, a salamander would have the greatest difficulty clinging to ) surface of hydrocarbonsb) surface of mostly carbon-nitrogen bondsc) slightly damp surfaced) surface of mostly carbon-oxygen bonds

Salamanders are amphibians which have lizard like appearance and have short limbs. They relies on hydrogen bonding which helps them to stick to various surfaces.

A salamander would have difficulty in clinging to a surface of hydrocarbon.

They excrete toxic on their skins and are considered as poisonous. They can climb to walls and mountainous areas.

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thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.