Evolution can only take place by the forces of natural selection. a. true b. false

If the experiment was perfomed more then once and you get the same results

The vascular system

It's definitely not b or c, it's either a or d but i can't figure out which one sorey

In the correct the steps in washing hands,    when applying soap and scrubbing, you must lather your hands by rubbing them together with the soap. lather between your fingers, under your nails and the  backs of your hands, . and scrub your hands for at least 20 seconds. you may use “happy birthday” song from beginning to end twice for your timer.