In the same science fair, tina asks the question "does caffeine increase the heart rate of an earthworm?" in test 1, she measures the heart rate by looking at the earthworm under a microscopes, the earthworm has a heart rate of 50 bpm (beats per minute). in test 2, she places a few drops of caffeine on the earthworm's skin and measures the rate again. in this test, the heart rate is 68 bpm.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “In the same science fair, tina asks the question "does caffeine increase the heart rate of an earthworm?" in test 1, she measures the heart ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
The life span of a multicellular organism is?
Answers (1)
How can problems related to STDs affect the male reproductive system?
Answers (1)
U You need to be more careful when you cycle down a hill than when you cycle up the hill. Why. What will happen on a see-saw if one boy is big and the other is small. How would the small boy balance the weight of the big boy?
Answers (1)
What is the main purpose of the executive branch of government?
Answers (1)
Which is not a basic function of a cell? a. Obtaining energy b. Storing energy c. Destroying energy d. Releasing energy
Answers (2)
New Questions in Biology
What is the number of chromosomes in body cells, if in germ cells that number is n?
Answers (1)
The more intense your workout, the more your body relies on carbohydrates to fuel it. Duration and intensity affect the degree to which carbohydrates and fat contribute to overall energy production.
Answers (1)
Using a broom to clean sidewalks and driveways is a way to reduce water pollution
Answers (1)
The model shows two types of proteins, channels and carriers, allowing the movement of molecules into the cell.
Answers (1)
Temperature, pH, and ionic concentrations each play an important role in the proper functioning of enzymes.
Answers (2)