Define phenotypic adaptations. Give two differences between habitat and niche.

Explanation

Phenotypic Adaptations. The are non-genetic changes in physical characteristics like external appearance, behaviour and physiology which develop in response to changes in environment and are useful to organisms in adjustment to prevailing environmental conditions.
Example. Appearance of mountain sickness at high altitude and its disappearance as one becomes acclimatised through increased production of RBCs, decreased binding capacity of haemoglobin and increased rate of breathing.