Why is it important to classify living organisms?

A) The DNA of organisms may be more easily to analyze

B) organisms may survive longer if they are classified

C) scientist may study and discuss organisms more easily

D) classifying is needed before a scientist may make observations

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

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

Identify the composition of oceanic and continental crystal rocks. in a model of earth’s interior, where would these rocks appear?