internal structures
The stomach is part of this body system.
What is the digestive system?
This feature of a mountain lion makes it easy for them to eat meat.
What is a strong jaw/sharp teeth?
Most fish breathe through these organs.
What are gills?
The stomach, esophagus, small intestines, and large intestines are part of the this body system.
What is the digestive system?
Mammals have this number of heart chambers.
What is 4?
The heart is the main part of this body system.
What is the circulatory system?
This external feature of an eagle makes it easy for them to tear flesh of their prey.
What is a sharp hooked beak?
Birds, reptiles, and mammals take in air into this pair of organs.
What are lungs?
The heart, veins, and arteries are part of this body system.
What is the circulatory systems?
The name for the structures found on the outside of an animals body.
What are external structures?
The lungs are part of this body system.
What is the respiratory system?
Transparent, hollow fur appears white so this animal can blend into its environment.
What is a polar bear?
This important organ pumps blood all day every day.
What is the heart?
This is the system that helps us to get rid of wastes in our body.
What is the excretory system?
Digestion begins here.
What is the mouth?
The bones are part of this body system.
What is the skeletal system?
A sea urchin has sharp spines used for this.
What is protection?
This muscular bag mashes and mixes food with substances that break down the food.
What is the stomach?
These 2 body systems work together to help our body move.
What are the skeletal and muscular systems?
This is another name for the air tube that leads to our lungs.
What is the trachea?
The kidneys and the skin are part of this body system.
What is the excretory system?
Feather help keep birds warm and help them to do this.
What is fly?
After food moves through the small intestines it moves to this organ.
What are the large intestines?
This system allows us to exchange gases as we breathe.
What is the respiratory system?
Fish have this number of heart chambers.
What is 2?