Carrot cells were grown in varying auxin concentrations

1. At what auxin concentration are the stems stimulated to grow the most

2. How is the growth of the roots affected by the auxin concentration at which stems grow the most

3. If you were a carrot farmer, what concentration of auxin should you apply to your fields to produce the largest carrots

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

What do transitional fossils best support?