*Question*
Q: Endothermic and exothermic reactions differ in whether the products or reactants store more of what? Read this paragraph and choose the correct option from the provided answers: A: The energy is stored in the bonds of the products as chemical energy. In an endothermic reaction, the products have more stored chemical energy than the reactants. This is represented by the graph on the left in the Figure below . In an exothermic reaction, the opposite is true. The products have less stored chemical energy than the reactants. You can see this in the graph on the right in the Figure below . Choices: - Motion energy - Thermal energy - Kinetic Energy - chemical energy A:
**Answer**
chemical energy

*Question*
Q: Red blood cells, white blood cells, platelets, and plasma are all components of what fluid? Read this paragraph and choose the correct option from the provided answers: 40.2 Components of the Blood Specific components of the blood include red blood cells, white blood cells, platelets, and the plasma, which contains coagulation factors and serum. Blood is important for regulation of the body's pH, temperature, osmotic pressure, the circulation of nutrients and removal of waste, the distribution of hormones from endocrine glands, and the elimination of excess heat; it also contains components for blood clotting. Red blood cells are specialized cells that contain hemoglobin and circulate through the body delivering oxygen to cells. White blood cells are involved in the immune response to identify and target invading bacteria, viruses, and other foreign organisms; they also recycle waste components, such as old red blood cells. Platelets and blood clotting factors cause the change of the soluble protein fibrinogen to the insoluble protein fibrin at a wound site forming a plug. Plasma consists of 90 percent water along with various substances, such as coagulation factors and antibodies. The serum is the plasma component of the blood without the coagulation factors. Choices: - heart - brain - Vessals - blood A:
**Answer**
blood

*Question*
Q: Friction does negative work and removes some of the energy the person expends and converts it to which kind of energy? Read this paragraph and choose the correct option from the provided answers: Discussion for (a) This value is the net work done on the package. The person actually does more work than this, because friction opposes the motion. Friction does negative work and removes some of the energy the person expends and converts it to thermal energy. The net work equals the sum of the work done by each individual force. Strategy and Concept for (b) The forces acting on the package are gravity, the normal force, the force of friction, and the applied force. The normal force and force of gravity are each perpendicular to the displacement, and therefore do no work. Solution for (b) The applied force does work. Choices: - erosion - hydro - evaporation - thermal A:
**Answer**
thermal

*Question*
Q: What are the building blocks of dna? Read this paragraph and choose the correct option from the provided answers: The building blocks of DNA are nucleotides. The important components of the nucleotide are a nitrogenous base, deoxyribose (5-carbon sugar), and a phosphate group (Figure 14.5). The nucleotide is named depending on the nitrogenous base. The nitrogenous base can be a purine such as adenine (A) and guanine (G), or a pyrimidine such as cytosine (C) and thymine (T). Choices: - prokaryotes - peptides - genes - nucleotides A:
**Answer**
nucleotides