Are needed in the diet as components of teeth and bone, as parts of certain enzymes, for normal muscle and nerve function, and for water balance

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

When you aware sick your body produces more leukocytes.briefly describe where the leukocyte are formed,how they are transported,and where they may be stored.

Hich is an example of using comparative anatomy to study evolutionary relationships? comparing and contrasting the dna of two organisms studying the digestive system structure in two organisms using ancient footprints to learn about an organism’s behaviors looking at the development of a fertilized egg of an organism