SCIENCE 101 > QUESTIONS & ANSWERS > ASVAB Study Guide-2020-2024. Top Notch Question and answers, 100% Approved. (All)
ASVAB Study Guide-2020-2024. Top Notch Question and answers, 100% Approved. Bone is composed primarily of which inorganic material? a. calcium b. phosphorus c. collagen d. potassium - ✔✔-... Calcium Calcium is the most abundant mineral found in bones, as well as in the entire body. Which of these is a biome? a. desert b. cornfield c. hear of bison d. beehive - ✔✔-Desert A biome is a large ecological community that includes specific plants and animals, such as a desert. Which planet orbits closest to Earth? a. Mercury b. Venus c. Jupiter d. Saturn - ✔✔-Venus Venus's orbit is closest to Earth. Venus is the second planet from the sun, and Earth is the third planet from the sun. What is the name of the phenomenon when a star suddenly increases in brightness and then disappears from view? a. aurora b. galaxy c. black hole d. supernova - ✔✔-Supernova Before a star collapses, the star burns brighter for a period of time and then fades before view. This is a supernova. Which organism has cells that contain mitochondria? a. whale b. mushroom c. tulip d. all of the above - ✔✔-All of the above Plant, animal, and fungi cells have mitochondria. Isotopes of an element will have the same number of _______ and different numbers of ________? a. electrons; neutrons b. neutrons; electrons c. protons; neutrons d. protons; electrons - ✔✔-Protons; neutrons Isotopes are atoms of the same element with the same number of protons but different numbers of neutrons. What condition can be diagnosed by an electrocardiogram (EKG)? a. diabetes b. torn ligaments c. cancer d. tachycardia - ✔✔-Tachycardia Tachycardia is an abnormally fast heart rate, and electrocardiogram shows the electrical activity of the heart. What are the negatively charged particles inside an atom? a. protons b. neutrons c. electrons d. ions - ✔✔-Electrons Electrons are negatively charged particles in an atom; electrons orbit the nucleus. Which organism regulates its body temperature externally? a. lobster b. dolphin c. whale d. pelican - ✔✔-Lobster The metabolic rate of crustaceans is too low to regulate their temperature. Crustaceans use behavioral techniques, such as moving to shallow water, to maintain body temperature. A box sliding down a ramp experiences all of the following forces EXCEPT? a. tension b. friction c. gravity d. normal - ✔✔-Tension Tension is the force that results from objects being pulled or hung. Which organism is a decomposer? a. apple trees b. mushrooms c. goats d. lions - ✔✔-Mushrooms Mushrooms are fungi. Fungi break down organic material left by dead animals and plants making them decomposers Which pH level is classified as a base? a. 1 b. 4 c. 6 d. 8 - ✔✔-8 Bases have a pH between 7 and 14. Which body system is responsible for the release of growth hormones? a. digestive system b. endocrine system c. nervous system d. circulatory system - ✔✔-Endocrine system The endocrine system releases hormones, including growth hormone. What is the term for the top layer of the earth's surface? a. exosphere b. lithosphere c. atmosphere d. biosphere - ✔✔-Lithosphere The lithosphere is the top layer of the earth's surface. Which of the following describes a physical change? a. water becomes ice b. batter is baked into a cake c. an iron fence rusts d. a firecracker explodes - ✔✔-Water becomes ice When water changes form, it does not change the chemical composition of the substance. Once water becomes ice, the ice can easily turn back into water. Which energy source is nonrenewable? a. water b. wind c. coal d. sunlight - ✔✔-Coal Coal is nonrenewable because once coal is burned, it cannot be quickly replaced. How long does it take the earth to rotate on its axis? a. one hour b. one day c. one month d. one year - ✔✔-One day Earth takes approximately twenty-four hours to rotate on its axis. During what process do producers make sugars and release oxygen? a. digestion b. chloroplast c. decomposition d. photosynthesis - ✔✔-Photosynthesis Photosynthesis describes the process by which plants convert the energy of the sun into stored chemical energy (glucose). 2C6H14+19O2->12CO2+14H2 [Show More]
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