Animals need air, water, and food in order to live and thrive.
Plants require air, water, nutrients, and light in order to live and thrive.
Nonliving things do not live and thrive.
Nonliving things can be human-created or naturally occurring.
Living things grow, take in nutrients, breathe, reproduce, eliminate waste, and die.
Some traits of living things have been inherited (e.g., color of flowers and number of limbs of animals).
Some characteristics result from an individual s interactions with the environment and cannot be inherited by the next generation (e.g., having scars; riding a bicycle).
wings, legs, or fins enable some animals to seek shelter and escape predators the mouth, including teeth, jaws, and tongue, enables some animals to eat and drink
the mouth, including teeth, jaws, and tongue, enables some animals to eat and drink
eyes, nose, ears, tongue, and skin of some animals enable the animals to sense their surroundings
claws, shells, spines, feathers, fur, scales, and color of body covering enable some animals to protect themselves from predators and other environmental conditions, or enable them to obtain food
some animals have parts that are used to produce sounds and smells to help the animal meet its needs
the characteristics of some animals change as seasonal conditions change (e.g. , fur grows and is shed to help regulate body heat; body fat is a form of stored energy and it changes as the seasons change)
animal adaptations include coloration for warning or attraction, camouflage, defense mechanisms, movement, hibernation, and migration
Living things are classified by shared characteristics on the cellular and organism level. In classifying organisms, biologists consider details of internal and external structures. Biological classification systems are arranged from general (kingdom) to specific (species).
Animals and plants have a great variety of body plans and internal structures that contribute to their ability to maintain a balanced condition.
An organism's overall body plan and its environment determine the way that the organism carries out the life processes.
Regulation of an organism's internal environment involves sensing the internal environment and changing physiological activities to keep conditions within the range required for survival. Regulation includes a variety of nervous and hormonal feedback systems.