Answer:
Bacteria can have one flagellum or several.
George Mendel chose to use purebred plants in his experiments because they have a variety of traits.
The heart must beat faster during exersise because by increasing the heart rate the body is able to increase cardiac output and deliver the necessary blood flow to the mucles
Answer:
Experimental Procedure:
Mix 10 drops of tincture of iodine with 30 drops of water to make an iodine solution. Put a cracker on a plate, and test it for starch using a drop of the iodine solution. Chew a second cracker for 60 seconds until it is completely mixed with saliva.
The maximum time a person could listen to a sound of 87 decibels is: 8 hours
<h3>Meaning of Decibels</h3>
Decibels can be defined as the unit used by scientists to measure sound level.The values of Decibel ranges from a very low value to a very high value and the higher we get the more dangerous it is to our human ear.
In conclusion, The maximum time a person could listen to a sound of 87 decibels is 8 hours
Learn more about Decibels and human hearing : brainly.com/question/1291668
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