Physical Structures
This support structure is located on the outside of the body.
What is an exoskeleton?
This random change in a gene can be helpful, harmful, or neutral.
What is a mutation?
This term describes a community of animals that share genes and can have fertile offspring with each other.
What is a species?
This term describes animals which change their form over their life cycles.
What is metamorphosis?
This atomic element makes up all life on Earth.
What is carbon?
This structure serves the same purpose for plants that eggs do for birds.
What is a seed?
This set of instructions, coded in DNA, tell an organism how to grow.
What is a gene?
This is the process of birth, growth, adulthood, and death that all organisms go through.
What is a life cycle?
A frog's larval stage is known by this name.
Plants use sunlight to split this molecule, using part of it to grow and releasing the other part into the air.
What is carbon dioxide?
This system is used by insects to exchange gases with their environment.
What are spiracles?
This is what plants are doing with each other in order to survive.
What is competing for resources?
This change in an organism's body allows it to survive and have offspring.
What is a structural adaptation?
This group of animals includes frogs and salamanders.
What are amphibians?
The name for this double-helix chemical structure is usually abbreviated to "DNA."
What is Deoxyribonucleic Acid?
This system moves nutrients and wastes through the body of an organism.
What is the circulatory system?
This step-by-step process comes after a plant community is disturbed by a change, such as a forest fire.
What is succession?
This way of doing things does not need to be learned, is passed down from an animal's parents, and helps that animal survive and reproduce.
What is a behavioral adaptation?
This type of metamorphosis has four stages.
What is complete metamorphosis?
This process allows plants to use sunlight in order to make their own food.
This is the scientific term for an internal skeleton.
What is an endoskeleton?
This process means that organisms with helpful mutations survive or have offspring, and organisms with harmful mutations don't survive or have offspring.
What is natural selection?
This is the term used when no more members of a species survive.
What is extinction?
Among animals that go through incomplete metamorphosis, this stage follows the egg stage.
What is a nymph?
This amphibian stays in its larval form throughout its life cycle, never going through metamorphosis and losing its gills.
What is an axolotl?