Which of these practices does the most to keep wind and water from carrying away topsoil? a. water logging b. drip irrigation c. no-till farming d. crop rotation

Which group of chordates does  notpossess true backbones?                 a.  birds      b.  frogs and toads      c.  lampreys      d.  crocodilians

1. which of the following is correct regarding opiates/opioids: a. they all have a natural component as a starting pointb. they have low addiction possibilitiesc. methadone binds to some of the same receptorsd. a and care correcte. all are correct

What is the next step in muscle contraction after the actin changes shape? (apex)