Which of the following is classified in the DSM-5 as a depressive disorder?

When human cells are grown under laboratory conditions that encourage them to grow and divide, cells

from human embryos stop dividing after about 50 divisions. from children divide more quickly than those of adults. lose their DNA. continue to reproduce themselves forever.

People can use machines more easily

(a) when the control information is in the environment (b) when the control information has to be memorized (c) when the designer employs user-centered conceptual models (d) when control information is meaningful, not arbitrary (e) A, C and D are all correct