Answer the following question given this paragraph: Cnidarians in the polyp form usually reproduce asexually. One type of asexual reproduction in polyps leads to the formation of new medusae. Medusae usually reproduce sexually with sperm and eggs. Fertilization forms a zygote. The zygote develops into a larva, and the larva develops into a polyp. There are many variations on this general life cycle. Obviously, species that exist only as polyps or medusae have a life cycle without the other form. Q: What is the stage between a zygote and polyp? Choices: - pupa - egg - worm - larva A:
larva
Answer the following question given this paragraph: Calorimetry is the measurement of the transfer of heat into or out of a system during a chemical reaction or physical process. A calorimeter is an insulated container that is used to measure heat changes. The majority of reactions that can be analyzed in a calorimetry experiment are either liquids or aqueous solutions. A frequently used and inexpensive calorimeter is a set of nested foam cups fitted with a lid to limit the heat exchange between the liquid in the cup and the air in the surroundings (see Figure below ). In a typical calorimetry experiment, specific volumes of the reactants are dispensed into separate containers and the temperature of each is measured. They are then mixed into the calorimeter, which starts the reaction. The reactant mixture is stirred until the reaction is complete, while the temperature of the reaction is continuously monitored. Q: What kind of container is used to measure heat changes during a chemical reaction or physical process? Choices: - hydrostatic - thermal flask - graduated cylinder - calorimeter A:
calorimeter
Q: Answer the following question given this paragraph: To change the motion of an object, inertia must be overcome by an unbalanced force acting on the object. Until the soccer player kicks the ball in Figure below , the ball remains motionless on the ground. However, when the ball is kicked, the force on it is suddenly unbalanced. The ball starts moving across the field because its inertia has been overcome. Q: What must be overcome to change the motion of an object? Choices: - pressure - weight - density - inertia A:
A: inertia
Question: Answer the following question given this paragraph: The organs of the digestive system are lined with muscles. The muscles contract, or tighten, to push food through the system ( Figure below ). The muscles contract in waves. The waves pass through the digestive system like waves through a slinky. This movement of muscle contractions is called peristalsis . Without peristalsis, food would not be able to move through the digestive system. Peristalsis is an involuntary process, which means that it occurs without your conscious control. Q: What is the movement of muscle in the digestive system called? Choices: - acid reflux - labor contractions - apoptosis - peristalsis A:
Answer: peristalsis
*Question*
Answer the following question given this paragraph: Gap genes control the shape of a developing zygote early in its development. Gap mutants are missing segments in their embryos. These genes are highly regulated. Q: What controls the shape of a developing zygote early in its development? Choices: - chromosomes - storage genes - DNA - gap genes A:
**Answer**
gap genes
*Question*
Answer the following question given this paragraph: An electric generator is a device that changes kinetic energy to electrical energy through electromagnetic induction. A simple diagram of an electric generator is shown in Figure below . In a generator, some form of energy is applied to turn a shaft. This causes a coil of wire to rotate between opposite poles of a magnet. Because the coil is rotating in a magnetic field, electric current is generated in the wire. If the diagram in Figure below looks familiar to you, that's because a generator is an electric motor in reverse. Look back at the electric motor in Figure above . If you were to mechanically turn the shaft of the motor (instead of using electromagnetism to turn it), the motor would generate electricity just like an electric generator. You can learn how to make a very simple electric generator by watching the video at the URL below. Making your own generator will help you understand how a generator works. Q: What is a device that changes kinetic energy to electrical energy through electromagnetic induction? Choices: - a battery - a windmill - a diesel engine - an electric generator A:
**Answer**
an electric generator