Answer the following question given this paragraph: Figure 9.3 This car is in dynamic equilibrium because it is moving at constant velocity. There are horizontal and vertical forces, but the net external force in any direction is zero. The applied force F app between the tires and the road is balanced by air friction, and the weight of the car is supported by the normal forces, here shown to be equal for all four tires. Q: When is a moving car said to be in dynamic equilibrium? Choices: - at rest - at homeostasis - when accelerating - zero net force A:
zero net force
Answer the following question given this paragraph: Treating genetic disorders is one use of biotechnology. Biotechnology is the use of technology to change the genetic makeup of living things for human purposes. It's also called genetic engineering. Besides treating genetic disorders, biotechnology is used to change organisms so they are more useful to people. Q: What is the use of technology to change the genetic makeup of living things for human purposes? Choices: - biological utility - biological engineering - genetic employing - genetic engineering A:
genetic engineering
Q: Answer the following question given this paragraph: Towels soak up liquids like water because the fibers of a towel are made of molecules that are attracted to water molecules. Most cloth towels are made of cotton, and paper towels are generally made from paper pulp. Both consist of long molecules of cellulose that contain many OH groups. Water molecules are attracted to these OH groups and form hydrogen bonds with them, which draws the H2O molecules up the cellulose molecules. The water molecules are also attracted to each other, so large amounts of water are drawn up the cellulose fibers. Capillary action can also occur when one end of a small diameter tube is immersed in a liquid, as illustrated in Figure 10.20. If the liquid molecules are strongly attracted to the tube molecules, the liquid creeps up the inside of the tube until the weight of the liquid and the adhesive forces are in balance. The smaller the diameter of the tube is, the higher the liquid climbs. It is partly by capillary action occurring in plant cells called xylem that water and dissolved nutrients are brought from the soil up through the roots and into a plant. Capillary action is the basis for thin layer chromatography, a laboratory technique commonly used to separate small quantities of mixtures. You depend on a constant supply of tears to keep your eyes lubricated and on capillary action to pump tear fluid away. Q: What can occur when one end of a small diameter tube is immersed in liquid? Choices: - diffusion action - transfusion action - thermal action - capillary action A:
A: capillary action
Question: Answer the following question given this paragraph: Curvatures of the Vertebral Column The adult vertebral column does not form a straight line, but instead has four curvatures along its length (see Figure 7.20). These curves increase the vertebral column's strength, flexibility, and ability to absorb shock. When the load on the spine is increased, by carrying a heavy backpack for example, the curvatures increase in depth (become more curved) to accommodate the extra weight. They then spring back when the weight is removed. The four adult curvatures are classified as either primary or secondary curvatures. Primary curves are retained from the original fetal curvature, while secondary curvatures develop after birth. Q: What feature of the spine helps with flexibility and strength? Choices: - shape - angle - arrangement - curves A:
Answer: curves
*Question*
Answer the following question given this paragraph: A heart block refers to an interruption in the normal conduction pathway. The nomenclature for these is very straightforward. SA nodal blocks occur within the SA node. AV nodal blocks occur within the AV node. Infra-Hisian blocks involve the bundle of His. Bundle branch blocks occur within either the left or right atrioventricular bundle branches. Q: What do we call an interruption in the normal conduction pathway of the heart? Choices: - heart attack - infarction - heartburn - heart block A:
**Answer**
heart block
*Question*
Answer the following question given this paragraph: Protostomes and Deuterostomes Bilaterally symmetrical, triploblastic eucoelomates can be divided into two groups based on differences in their early embryonic development. Protostomes include phyla such as arthropods, mollusks, and annelids. Deuterostomes include. Q: What are the two groups that tripoblastic eucoelomates can be divided into based on early embryonic development differences? Choices: - protostomes and eurostomes - heterodimers and deuterostomes - odontoblasts and deuterostomes - protostomes and deuterostomes A:
**Answer**
protostomes and deuterostomes