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Which organ in the excretory system filters blood?(1 point)
Responses
kidney
kidney
ureter
ureter
bladder
bladder
urethra
The correct answer is the kidney. The kidney is the organ in the excretory system that filters blood and removes waste products, excess water, and toxins from the body.
Question
What is amylase?(1 point)
Responses
a nutrient absorbed in the small intestine
a nutrient absorbed in the small intestine
another name for the large intestine
another name for the large intestine
an enzyme that breaks down food
an enzyme that breaks down food
acid in the stomach
The correct answer is: an enzyme that breaks down food. Amylase is an enzyme that helps break down complex carbohydrates into simpler sugars during digestion. It is produced in the salivary glands and pancreas.
What is urea?(1 point)
Responses
a structure in the kidney
a structure in the kidney
the waste removed by the kidney
the waste removed by the kidney
the tube through which waste leaves the body
the tube through which waste leaves the body
the tube that connects the kidney to the bladder
the tube that connects the kidney to the bladder
The correct answer is: the waste removed by the kidney. Urea is a waste product that is produced in the liver as a result of protein metabolism. It is filtered out of the blood by the kidneys and excreted in urine as a way for the body to remove nitrogenous waste.
Which organ in the digestive system has a function that is most similar the function of the bladder in the excretory system?(1 point)
Responses
esophagus
esophagus
stomach
stomach
small intestine
small intestine
large intestine
The correct answer is the large intestine. Just as the bladder in the excretory system stores and eliminates urine, the large intestine in the digestive system stores and eliminates feces. Both organs have a similar function of storing waste materials and facilitating their elimination from the body.
Which is an example of how the physical environment helped the Aztecs establish an empire?
(1 point)
Responses
The capital city of Tenochtitlan could be easily defended from attack.
The capital city of Tenochtitlan could be easily defended from attack.
The active volcanoes kept neighboring peoples from attacking the Aztecs.
The active volcanoes kept neighboring peoples from attacking the Aztecs.
The capital city of Tenochtitlan was located in the dense rain forest.
The capital city of Tenochtitlan was located in the dense rain forest.
The Aztecs lived on a flat plain that was perfect for warfare.