The aorta pumps blood away from the heart at about 40 cm/s and has a radius of about 1.0 cm. it then branches into many capillaries, each with a radius of about 5×10−4 cm carrying blood at a speed of 0.10 cm/s. how many capillaries are there?
a- 1.6×109
b- 16
c 8.0×105
d- 1.6×105

What type of light does this light bulb produce most (i. e. at what wavelength does the spectrum have maximum intensity)?

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.