Inside
What is internal?
What is external?
A rigid support system that includes bones that connect to the soft structures of the body
What is skeleton?
A hard external covering of some invertebrates that is waterproof
What is exoskeleton?
A nerve signal sent to the brain
What is stimulus?
A collection of small tubes that transport water and nutrients up, down, and throughout the plant
What is the vascular system?
Green leaf-like part of a plant that protects the flower until it is ready to bloom
What is sepal?
Organisms with an internal bony skeleton
What are vertebrates?
A quality or trait that can be used to identify an organism
What is characteristic?
All the organisms of a species have died off
The female reproductive part of a plant that helps it reproduce
What is the ovary?
A waxy outer covering on leaves that limits the amount of water a plant loses
What is cuticle?
What is heart?
Sharp, pointy structures on the feet of mammals, reptiles, and birds
What are claws?
To stay alive
What is survive?
Organized parts that work together to help an organism survive
What are structures?
Contains the plant's female reproductive parts and receives pollen transferred from a stamen
What is pistil?
The paired breathing organ of vertebrates that provides oxygen to the blood and takes carbon dioxide from the blood
What are lungs?
What are feathers?
To avoid extinction, changes a plant or animal must make when their environment changes
What are adaptations?
A particular job
The male part of a flower that makes pollen
Organs that take in oxygen from water as it flows over them
What are gills?
A rough covering that protects and insulates the body of fish and reptiles
What are scales?
To fly south for the winter to avoid colder temperatures
What is migrate?