The answer is : randomization was not used in sample selection. The major difference between experimental and quasi-experimental designs is lack of randomization in sampling selection.
The surface layer of the water freezes solid creating a barrier that insulates the ice below so that it keeps a steady temperature usually a few degrees above freezing (32 degrees).
Answer: Sex evolved as an extremely efficient mechanism for producing variation, and this had the major advantage of enabling organisms to adapt to changing environments. Sex did, however, come with a cost. In reproducing asexually, no time nor energy needs to be expended in choosing a mate.
Explanation: no kizzac lemme get brainliest please?
<span>3.2 inches. The nurse if doing a cardiopulmonary resuscitation. It is an emergency procedure combines with chest compression and artificial ventilation. It is done during a cardiac arrest. When doing so the nurse should compress the lower sternum by 3.2 inches.</span>
as in any liquid, as heat is added, solutions become more capable of holding more dissolved material . (not sure if this is what you're asking as it seems to be missing information)
