Which of the following allows water to flow into the roots of plants?
cytoplasm
mitochondria
osmosis
vacuoles
What is osmosis?
100
The circulatory system transports blood through various sized tubes called arteries, veins and __________?
What is capillaries?
100
Which system breaks down food into nutrients?
respiratory
digestive
circulatory
excretory
What is digestive?
100
which of the following is a ball-and-socket joint?
knee
elbow
hip
toe
What is hip?
100
The nervous system carries _________ to and from the brain.
nutrients
blood
signals
oxygen
What is signals?
200
Osmosis is one kind of _______?
active transport
organelle
carrier
diffusion
What is diffusion?
200
Oxygen enters the body through the ___________?
digestive system
respiratory system
circulatory system
excretory system
What is the respiratory system?
200
Which system is responsible for removing wastes from the body?
skeletal system
digestive system
excretory system
circulatory system
What is the excretory system?
200
Bones are attached to each other in places called __________.
What is joints?
200
Some kinds of nerve cells, called _________ detect conditions in the body's enviroment.
nephrons
neurons
receptors
signals
What is receptors?
300
Plants and animals grow when cells_______?
reproduce
release energy
get rid of wastes
repaid themselves
What is reproduce?
300
Oxygen travels to every cell in the body through the ___________?
respiratory system
circulatory system
digestive system
excretory system
What is circulatory system?
300
Nutrients move from the digestive system into the blood by traveling through ___________, tiny tubes sticking out of the wall of the small intestine.
villi
nephrons
neurons
alveoli
What is villi?
300
Tough bands of tissue called __________ attach bones to muscles.
What is tendons?
300
Specialized cells called ___________ transmit and receive nervous system signals.
receptors
nephrons
neurons
villi
What is neurons?
400
An animals skin is a type of what kind of tissue?
Connective Tissue
Muscle Tissue
Epithelial Tissue
Nervous Tissue
What is Epithelial Tissue?
400
In the respiratory system, air travels into and out of the lungs through tubes. The smallest tubes end in tiny sacs call___________?
What is alveoli?
400
In the body's excretory system, urea and water travel from the blood into the kidneys and diffuse into __________?
neurons
villi
nephrons
alveoli
What is nephrons?
400
Bands of tissue called _________ attach bones to each other.
What is ligaments?
400
Would you expect to find muscle tissue in a plant? Why or why not?
No, muscles enable an organism to move. Since plants cannot move from place to place, they do not have muscles that contract voluntarily or involuntarily.
500
Compare the organelles in a cell to organs in a human body. How are organelles similar to organs?
Both organelles and organs have specific functions to perform. Organelles do their job in cells, while organs carry out their functions in the body.
500
What kind of things does the blood transport (hint: there are 3)? Why are these things important to cells in the body?
The blood transports oxygen, nutrients and wastes. Each cell needs oxygens and nutrients in order to live and reproduce. Each cell also needs to have its wastes removed.
500
What are the 7 parts of the digestive system?
What is esophagus, stomach, small intestine, large intestine, liver, pancreas and gallbladder?
500
Bones have a hard outer membrane, and a soft center that contains____________?
What is bone marrow?
500
Hypothosize how your body's receptors keep you safe?
Feelings of heat, cold, pain, pressure and touch warn you of possible dangers. For example, if you touch a hot stove, the feeling of heat warns you to move your hand.