List the three basic leaf shapes. In what other ways do leaves vary from plant to plant?

What do we mean by cognitive learning, and how does it vary from the conditioning theory approach to learning?

Why do temperatures vary so much on the moon?

Calculate the areas of the shapes below:

When in our everyday lives do we not want precise measurements?

Do you lose or gain information when you use statistics to reduce a population to a few characteristic numbers? Explain your answer.

When you use a ________, the money

Suppose that you made repeated measurements of your height. If you used good technique, would you expect the range to be large or small? Explain your answer.

What does a small standard deviation signify? What does a large standard deviation signify?

Suppose that a biologist states that the average height of undergraduate students at your university is $205 \mathrm{~cm}$ plus or minus a standard deviation of $17 \mathrm{~cm}$. What does this mean?

Cross-cultural studies on personality traits have shown that ____.

Many scientists believe that for humans at least, there is a natural span of life. That is, there is a limit beyond which human life cannot extend, regardless of advances in medical science. Currently, the maximum life span in developed countries is around $120$ years, and evidence suggests that it has been that way since Roman times. However, with improvements in medical care, the average life span has increased significantly during the past century. Sketch a sequence of survivorship curves that illustrates an increasing average life span with the exact maximum life span.

How do we use self-schemas to process information about ourselves?

Some psychologists believe that _________________, or looking within, is one way to learn about ourselves.