How might learning how creatures survive in the dark help us?

1.at the trials, she won both the 50 and 100 meter freestyle events. 2.her last olympic appearance was at the 2000 sydney games. 3.now her sights are set on olympic history at the 2008 beijing games. 4.dara torres is an amazing swimmer who qualified at the olympic trials to become the oldest olympic female swimmer. 5.with that excellent performance, she is eligible to contend for a medal at the olympics. what is the most logical order for these sentences?

What is the missing statement in step 3 of the proof? given: z1 is complementary to 22. 22 is complementary to 23. prove: m_1 = m23 m21 = m2 m2 1 + m22 = 90° m22 = m23 m22 + m23 = 180° 2 statements 21 is comp. to 22 2. 22 is comp. to 23 3. ? 4. mz1 - 90°-m22 m22+m23 = 90° 6. m23 = 90°-m22 7 m21 - m23 reasons 1. given 2. given 3. def of comp. zs 4. subtr equality prop. 5. def. of comp. 25 6 subtr. equality prop 17. trans. prop. vo

The moutain stood shoulder to shoulder and glared down at the pasture below, daring anyone to approach. what is the most likely the intent of the author's word choice in this sentence?