Amazing
Anton van Leeuwenhoek improved the ____________________.
Anton van Leeuwenoek discovered _______________ using his improved microscope.
bacteria
The smallest units of life are called ___________.
cells
Organs are made up of ________________.
tissue
The ________________ system removes liquid waste from your body.
a. circulatory
b. skeletal
c. excretory
c. excretory
The _________________ system process the food and liquid you consume.
a. respiratory
b. digestive
c. circulatory
b. digestive
Name an organ from the respiratory system.
Nose
The heart is part of the ______________ system.
a. digestive
b. muscular
c. circulatory
c. circulatory
The __________________ system works together with the skeletal system to help you move.
a. muscular
b. digestive
c. nervous
a. muscular
The brain and nerves are part of the _______________ system.
a. skeletal
b. nervous
c. muscular
b. nervous
True or False:
The smallest units of life are called organs.
False, they are called cells.
True or False:
Organs make up organ systems.
True
True or False:
Anton van Leeuwenhoek invented the first ever microscope.
False, he improved the microscope, not invented it.
Hundreds of bones make up the ___________________ system.
a. muscular
b. skeletal
c. nervous
b. skeletal
The stomach is part of the ________________ system.
a. nervous
b. skeletal
c. digestive
c. digestive
Blood is circulated by the heart in the __________________ system.
a. muscular
b. circulatory
c. nervous
c. excretory
Mr. Ibalarrosa ran the Titan Trot 5K and is out of breath. Which body system allows him to breath hard while he runs?
The respiratory system
Mr. Greene is able to lift a stack of chairs. Which two organ systems is he using to help move heavy objects?
The muscular system and skeletal system
A toddler sees a candle and touches the flame. He quickly pulls his hand back as he feels pain. Which system is responsible in helping him feel pain?
The nervous system
Complete the following:
Cells ------> __________ ------> __________ ------> __________ _________
Cells ------> Tissue ------> Organs ------> Organs (or body) System