Lungs expel waste from the body in the form of (1 point)
Responses
oxygen.
oxygen.
carbon dioxide.
carbon dioxide.
water.
water.
blood cells.
blood cells.
carbon dioxide.
Which option is single celled? (1 point)
Responses
a bacterium
a bacterium
an artery
an artery
a human
a human
a kidney
a kidney
a bacterium
Which vessel carries oxygenated blood to the heart?(1 point)
Responses
vena cava
vena cava
pulmonary vein
pulmonary vein
aorta
aorta
pulmonary artery
pulmonary artery
pulmonary vein
A patient has a condition that makes it difficult to absorb nutrients from food. Which organ is most likely affected by the condition?(1 point)
Responses
large intestine
large intestine
small intestine
small intestine
stomach
stomach
esophagus
small intestine
When you experience changes in light, sound, and temperature, which cells send signals toward the central nervous system? (1 point)
Responses
motor neurons
motor neurons
sensory neurons
sensory neurons
axons
axons
dendrites
sensory neurons
Which sensory receptors would allow you to tell the difference between sweet and sour?(1 point)
Responses
thermoreceptors
thermoreceptors
mechanoreceptors
mechanoreceptors
chemoreceptors
chemoreceptors
photoreceptors
photoreceptors