Praxis 5005 Science Practice Test Questions and Answers Rated A+

Praxis 5005 Science Practice Test Questions and Answers Rated A+ Which of the following characteristics is (are) unique to mammals? milk producing glands Which of the following organ systems is responsible for the transport of blood and nutrients? circulatory system an example of a device that converts electrical energy directly into mechanical energy A motor represents the amount of space an object takes up? Volume Which of the following is a major advantage of sexual reproduction over asexual reproduction? Increasing the genetic diversity of organisms in a population Earth is considered to be the only planet in the solar system that can sustain a complex biosphere because it is the only planet that has a significant amount of surface water in liquid form Before a dividing cell can begin mitosis, the DNA of the cell must undergo mutation The positions of stars seen in the summer at 11 P.M. are different than those seen in the winter at the same time. Which of the following best explains this? Earth revolves around the Sun. Most of an atom's volume is empty space Which of the following is generally true about X-linked disorders in humans? Both males and females can have the disorder. Scientists believe that the solar system formed from which of the following? A cloud of gas and dust Which of the following is a structure formed during the asexual phase of the moss life cycle Spore A total lunar eclipse occurs when Earth casts a shadow on the Moon. What is the Moon's phase when a total lunar eclipse occurs? Full moon Which of the following is true of the four planets farthest from the Sun compared with the four planets closest to the Sun? Which of the following cell structures are made only of DNA and protein? Evidence that Earth's inner core is solid was acquired largely from studying which of the following? seismic waves from earthquakes A rock is released from rest at a certain height near the surface of the Moon. Which of the following correctly describes the motion of the rock after it is released? It accelerates downward, toward the surface of the Moon. Which of the following is a true statement about temperature? Temperature is a measure of the average molecular kinetic energy of a substance. Which of the following represents a biome? tropical rain forest Which of the following planets is closest to the sun? mercury A. The Sun is a star. C. Various stars have different surface temperatures. D. Some stars exist for longer periods than other stars. Which THREE of the following statements about stars are true? Fossils are most often found in which of the following kinds of rocks? sedimentary rock Organisms that are in the same biological class must also be in the same phylum Which of the following organisms primarily regulates its internal body temperature by external means? butterfly Which of the following must be present in a population in order for natural selection to occur? Genetic variation Which of the following statements best describes an element? It is a pure substance consisting of one type of atom The DNA in an animal cell is found in which of the following locations? Nucleus Which of the following is an amphibian? Salamander Which TWO of the following biological molecules in humans are metabolized by the body as sources of energy? Fats and Carbohydrates rock formed when magma or lava rises to the surface, then cools and hardens igneous rock Before a dividing cell can begin mitosis, the DNA of a cell must undergo... Replication scientist believe the solar system was created by what? cloud of gas and dust is always thinnest under the oceans, the outer layer of the earth The earths crust The chromosomes of an eukaryotic organism are found in nucleus nucleus an