33 Select the correct answer.

Which of the following is characteristic of the sliding filament theory?

O A

The sarcomere stays the same length.

OB.

The contractile filaments shorten.
OC.
The thin filaments slide past the thick filaments.

OD.

All of the above

Matt is driving down 7th street. he drives 150 meters in 18 sec. assuming he doesn’t slow down or speed up, what is his speed?

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?