Use the theory of evolution to explain the observation that there are no tuskless males in the park. WHY do males retain their tusks, when 50% of females lost them.

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

The nursing instructor has been observing nursing students initiate an iv infusion. which action(s), if made by the nursing student, indicates that further instruction is needed? (select all that apply.) the nursing student:

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?