The stage of Intimacy vs. Isolation occurs from eighteen to forty years of age. Successful completion of this stage provides the virtue of Love. In other words successful completion of this stage can lead to comfortable relationships and a sense of commitment, safety, and care within a relationship.
Null hypothesis is the hypothesis that the effect relationship, or the other manifestations of variables and data under investigation does not exist.
I null hypothesis , a study is started in which an assumption is made that there is no difference between the experimental and control groups.
This assumption of no difference between between the experimental and control groups is known as null hypothesis.
If the results of the study indicate a P value, it indicates that there is a difference between the groups and it is determined with the help of the P value that this difference is due to chance.
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Answer:
boy and girl do each other
Explanation:
<u>d) observing how the heart contracts to pump blood
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