This is the way an organism reacts to its environment or other organisms.
What is behavior?
This type of communication uses chemicals to influence behavior of the same species.
What are pheromones?
This type of reproduction involves sperm and egg combining.
What is sexual reproduction?
These connect bones to other bones at joints.
What are ligaments?
This is the outermost layer of skin.
What is the epidermis?
A change in an organism’s environment that causes a reaction is called this.
What is a stimulus?
The ability of some organisms to produce light for communication is called this.
What is bioluminescence?
Fertilization that occurs outside the body is called this.
What is external fertilization?
This type of joint allows movement in one direction, like elbows and knees.
What is a hinge joint?
This pigment in the skin helps protect against UV rays.
What is melanin?
This type of behavior is inherited and happens automatically the first time.
What is an innate behavior?
This term describes a group of animals of the same species living and working together.
What is a society?
This structure provides food for an embryo in an egg.
What is the yolk?
This tissue reduces friction between bones at joints.
What is cartilage?
This process helps cool the body as sweat evaporates.
What is sweating?
This type of innate behavior is a quick, automatic response that does not involve the brain.
What is a reflex?
This type of behavior involves defending an area for feeding, mating, or raising young.
What is territorial behavior?
The length of time between fertilization and birth is called this.
What is gestation?
These attach muscles to bones.
What are tendons?
When blood vessels widen to release heat, they are doing this.
What is dilating?
A monkey learning to open a box by trying different methods is an example of this type of learning.
What is trial and error?
In a dominance hierarchy, these animals have the highest rank and control over others.
What are dominant animals?
This developmental process involves a major change in body form from egg to adult.
What is metamorphosis?
During shivering, muscles convert chemical energy into this type of energy.
What is thermal energy?
This layer of skin contains blood vessels, nerves, and sweat glands.
What is the dermis?