Which domain of life is characterized by having peptidoglycan in its cell walls?

The Earth’s early atmosphere was:

Archaea are more closely related to Eukarya than they are to Bacteria.

Multicellularity likely evolved through which of the following methods?

                  A 49-year-old female presents with fatigue and pallor. The clinician suspects anemia and must differentiate between iron deficiency anemia and folate deficiency anemia. Which of the following action is the most appropriate to guide diagnosis? 

Which represents a trait that is LEAST likely to be applied to phylogenetic analysis?

Male rhinoceros beetles that are dd at a locus have greater success in mating than those that are DD or Dd. Which statement is true?

Which event is LEAST likely to lead to allopatric speciation?

Refer to the graph showing the relationship between body size and fitness in a population of Texas blind salamanders.  Be sure to answer both parts of the question.  1. Define fitness. 2. What is likely to happen to the average body size of the salamanders in this population after many generations?   

KWL is an instructional strategy for