Answer in order]

this refers to the possible outer layer of an organism, there are three main possibilities: skin, feathers, and scales.

this is the actions of organisms in response to stimuli.

this is the set of skills and abilities necessary for an organism to live.

this is an internal support structure of an animal that gives the body structure and shape.

this is a tough external covering that supports and protects many invertebrates.

in aquatic organisms, these are the respiratory organ for the extraction of oxygen from water and for the excretion of carbon dioxide.

this is a type of animal whose body temperature is determined by the surrounding environment.

this is a type of animal that can generate its own body heat and has internal control over its body temperature.

a recurring pattern of movement between 2 or more locations in response to environmental rhythms or seasonal changes.

this is a biological reaction due to a stimulus.

this is a survival adaptation by which an animal blends in and is hidden in its surroundings.

this is when animals go into a deep sleep during the winter, often in a den, burrow, or hollow log for protection and shelter. the animal's body temperature drops, and its rate of breathing slows down.

this is an animal adaptation to life on land. it is an enclosed water-impermeable structure surrounding a fluid-filled amniotic cavity which allows embryonic development on land without danger of drying out.