Q: Because dizygotic twins develop from two eggs fertilized by two sperm, they are no more identical than siblings born at what? Read this paragraph and choose the correct option from the provided answers: birth of dizygotic (or fraternal) twins. Because dizygotic twins develop from two eggs fertilized by two sperm, they are no more identical than siblings born at different times. Much less commonly, a zygote can divide into two separate offspring during early development. This results in the birth of monozygotic (or identical) twins. Although the zygote can split as early as the two-cell stage, splitting occurs most commonly during the early blastocyst stage, with roughly 70100 cells present. These two scenarios are distinct from each other, in that the twin embryos that separated at the two-cell stage will have individual placentas, whereas twin embryos that form from separation at the blastocyst stage will share a placenta and a chorionic cavity. Choices: - other times of day - different places - other eras - different times A:
different times

Q: The simplest class of organic compounds is the what? Read this paragraph and choose the correct option from the provided answers: isolating the individual components, preservationists are better able to determine the condition of an object and those books and documents most in need of immediate protection. The simplest class of organic compounds is the hydrocarbons, which consist entirely of carbon and hydrogen. Petroleum and natural gas are complex, naturally occurring mixtures of many different hydrocarbons that furnish raw materials for the chemical industry. The four major classes of hydrocarbons are the alkanes, which contain only carbonhydrogen and carboncarbon single bonds; the alkenes, which contain at least one carboncarbon double bond; the alkynes, which contain at least one carboncarbon triple bond; and the aromatic hydrocarbons, which usually contain rings of six carbon atoms that can be drawn with alternating single and double bonds. Alkanes are also called saturated hydrocarbons, whereas hydrocarbons that contain multiple bonds (alkenes, alkynes, and aromatics) are unsaturated. Choices: - particles - Phenols - gas - hydrocarbons A:
hydrocarbons

Q: Q: What anatomical system is made up of neurons and glia? Read this paragraph and choose the correct option from the provided answers: CHAPTER SUMMARY 35.1 Neurons and Glial Cells The nervous system is made up of neurons and glia. Neurons are specialized cells that are capable of sending electrical as well as chemical signals. Most neurons contain dendrites, which receive these signals, and axons that send signals to other neurons or tissues. There are four main types of neurons: unipolar, bipolar, multipolar, and pseudounipolar neurons. Glia are non-neuronal cells in the nervous system that support neuronal development and signaling. There are several types of glia that serve different functions. Choices: - reproductive system - lymphatic system - digestive system - nervous system A:
A: nervous system

Question: Q: What does water vapor in the atmosphere cool and condense into? Read this paragraph and choose the correct option from the provided answers: Figure below shows the role of the atmosphere in the water cycle. Water vapor rises from Earth's surface into the atmosphere. As it rises, it cools. The water vapor may then condense into water droplets and form clouds. If enough water droplets collect in clouds they may fall as rain. This how freshwater gets from the atmosphere back to Earth's surface. Choices: - puddles - rain - oceans - clouds A:
Answer: clouds

*Question*
Q: The grasp reflex in humans is an example of what kind of behavior? Read this paragraph and choose the correct option from the provided answers: One of the few innate behaviors in human beings is the grasp reflex. It occurs only in babies. Choices: - habit - inclination - trait - innate A:
**Answer**
innate

(Question)
Q: What is a measure of the change in velocity of a moving object? Read this paragraph and choose the correct option from the provided answers: Acceleration is a measure of the change in velocity of a moving object. It shows how quickly velocity changes and whether the change is positive or negative. It may reflect a change in speed, a change in direction, or both. Choices: - inclination - vibration - kinetic energy - acceleration A:
(Answer)
acceleration