Babies with very low or very high birth weight are less likely to survive. observe the graph of the data. which statement is a valid claim that could be made using data in the graph? a. directional selection is occurring b/c the graph favors an extreme b. stabilizing selection is occurring b/c the average is favored. c. disruptive selection is occurring b/c the two extremes are favored. d. biodiversity selection is occurring b/c of the greater variation.

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.

According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this?               a.  this implies that dna and proteins aren't essential in cells today.    b.  this implies that rna can catalyze any chemical reaction that enzymes catalyze.    c.  this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna.    d.  this implies that dna and proteins evolved after rna.