Biology, 12.03.2021 18:50 lukeakalucas

Pls help me ill make u a brainliest if its correct Sandra measured her heart rate and her breathing rate at rest and again after doing 50 jumping jacks. What is the main reason that both her heart rate and her breathing rate went up with exercise?
Answers
1.They both increased to carry heat away from her working muscles more efficiently.
2.They both sped up to supply her working muscles with enough oxygen to remain in homeostasis.
3.Her muscles were out of shape and required extra blood and oxygen to maintain her jumping pace.
4.Her lungs and heart ran short on oxygen while she was exercising and sped up to maintain homeostasis.

Answers: 2

Show answers

Another question on Biology

Biology, 21.06.2019 16:50

Pick twenty foods and research the amount of total carbohydrates, sugars, and other carbohydrates in them. note: most food labels have this information. record your findings.

Answers: 1

Answer

Biology, 22.06.2019 05:40

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

Answers: 3

Answer

Biology, 22.06.2019 09:00

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

Answers: 2

Answer

Biology, 22.06.2019 10:00

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

Answers: 1

Answer

You know the right answer?

Pls help me ill make u a brainliest if its correct Sandra measured her heart rate and her breathing...

Questions