Little 3-year-old Sally has decided to throw a temper tantrum and has chosen to hold her breath and stomp her feet. However, it is known that she can only hold her breath for a limited period of time before Sally will involuntarily begin to breathe again. Describe the feedback mechanism and anatomical structure that initiates involuntary breathing. Make sure to include how an increased level of CO2 affects this mechanism.

What abo controlling alleles could kim give her child

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?

Dna and rna share a number of similarities, but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna