Read the paragraph about engineers choosing the best material for cases for electronics. which technological design criterion applies to the statement?

a solve the problem
b be available
c be affordable
d not cause harm to users

How does secondary succession differ from primary succession?

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods. c. it shows that these organisms share the same habitat. d. it provides evidence that these organisms suffered a genetic mutation.

What problem would a person most likely have if her kidney did not work correctly?