Antioxidants a. protect cells from damage by blocking the formation of free radicals. b. help the body manufacture vitamins. c. protect the body from dehydration by ensuring adequate fluid levels. d. make up about 70% of total body weight.

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Pl which diagram illustrates prophase?

Which event would lead to primary succession of a forest?