To move the Lowe leg upwards the shortens and

Which flexible structure that supports the nerve cord and led to the backbone

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

Which of the following is required of a new drug?me