This and That
The main organ of the circulatory system
What is the heart?
This system helps us break down our food.
What is the digestive system?
Spines on a sea urchin are used for _______________.
What is protection?
The lungs are the main organ of this system.
What is the respiratory system?
Structures on the outside of the body.
What are external structures?
Fish have a _____ chamber heart.
What is 2?
This system helps us breathe.
What is the respiratory system?
Birds feathers help them fly and also help them ____________________.
What is stay warm?
Mammals have a __________ chamber heart.
What is 4?
Structures on the inside of the body.
What are internal structures?
Fish breathe through ___________
What are their gills?
This system helps pump blood through the body.
What is the circulatory system?
Dolphins use these to swim.
What are fins and a tail?
The lungs are part of the respiratory system. They also belong to this body system.
What is the excretory system?
A group of organs that work together are called _______________________________.
What is an organ system?
The longest organ in the body.
What is the small intestine?
This system includes all of our bones.
What is the skeletal system?
This animal has flat teeth and a gum pad to chew the grass that it eats.
What is a gizzard?
A body part that is made of smaller parts that work together to do a certain job.
What is an organ?
Scientist model inventions after things found in nature. This is called ________________________
What is biomimicry or biomimetics?
This system's job is to help get ride of waste.
What is the excretory system?
This sea animal has no mouth. They have structures that let them catch food.
What are coral, sponges, or barnacles?
A cow has ______________stomachs?
What is 4?
The skin of a frog helps it stay moist and helps it ______________________.
What is breathe?