Match the activities to their respective categories

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The answer is:

Structural  Adaptations:

Thickness of fur coatBeak type

Behavioral Adaptations:

Nocturnal ?

Structural adaptations mean all the physical changes that species do in order to adapt to different conditions. Structural adaptations are thickness or fur coat, beak type, teeth type, movements, and others.

Behavioral adaptations mean all the behavioral changes that species do in order to adapt to different conditions/situations. Behavioral adaptations are: Hibernation, nocturnal nature, flocking, migration, birds calls, and others.

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The answer to this is a

The circumcenter is  equidistant  from each vertex of the triangle. the circumcenter is at the  intersection  of the  perpendicular bisectors  of the triangle's sides. the circumcenter of a right triangle falls on the side opposite the right  angle. the incenter  of a triangle is always inside it.