Identify the molecular geometry for the molecule pictured below the table.  

Considering the electronegativity values indicated for each element, which covalent bond is the LEAST polar? C Cl F O N H 2.5 3.0 4.0 3.5 3.0 2.1  

The compound K3N is  

Jean Piaget proposed that children in the preoperational stage think differently from older children and adults. Create your own original example of a situation involving a 3–6 year old child that demonstrates a cognitive limitation typical of the preoperational stage (e.g., egocentrism, centration, animism, lack of conservation, irreversibility). In your response: Identify the specific characteristic of the preoperational stage being demonstrated. Briefly explain the stage. Clearly explain how your example illustrates this stage. Your example must be different from the classic “liquid in different cups” conservation task.

Extra Credit Question (3 points) Suppose a scientist measures the amount of DNA per cell of a particular diploid species at various stages of meiosis. She finds that the meiotic cells contain 3.7 pg, 7.3 pg or 14.6 pg of DNA per cell. Specify the amount of DNA per cell (3.7 pg, 7.3 pg or 14.6 pg) for cells in the following stage of the cell cycle:      Stage of the Cell Cycle Amount of DNA per cell    G2    After Cytokinesis of Meiosis II    Metaphase of Meiosis II

What is a hereditary collagen defect, resulting in brittle forming bones and fetal bone fractures?

Blood calcium level is regulated by _____________.

Children with Spina Bifida always have a cognitive impairment as well.

The client remains hypertensive with persistent crackles despite oxygen therapy. The provider states, “We need to reduce afterload to improve forward flow.” Which medication best addresses this physiologic goal?

Case: A trauma patient with massive hemorrhage from pelvic fractures has: Hgb 6.8 g/dL Platelets 18,000/mm³ INR 2.1 aPTT prolonged Fibrinogen 90 mg/dL Match each blood product with its most appropriate indication.