Science Crossword

composed of many cells
any living thing
composed of one cell
an odorless reactive gas that you breathe in
a single celled freshwater animal covered with cilia
a substance that provides nourishment
the smallest structural and functional unit of an organism
a pair of organs used to allow oxygen to pass through blood
a cell designed to do something specific
what groups of similar cells form
a band of fibrous tissue in an animal body
groups of different organs that perform a specific job
a slimy substance, typically not with water
a hollow muscular organ that forms an air passage
a short, microscopic, hairlike vibrating structure
any of the branches in which a bronchus divides
a part of the body above the mouth, used for breathing and smelling
the opening in the lower part of your face that is used to breathe
a large membranous tube reinforced by rings of cartilage
they are singular bronchus
a simple sugar that is an important source of energy for organisms
the system dealing with breathing
the system that releases waste
the system that breaks down food
the system that circulates blood through the body
a membranous sac in animals used to hold urine
where hydrochloric acid is stored to kill of germs in food
the tube that has food transferred to the stomach
the tube used to finish digesting any extra food
the tube that transfers food to the anus
tubes of deoxygenated blood leading to the heart
used to connect arteries and veins
tubes of oxygenated blood that are moving away from the heart