Ati teas 6 practice test math, english and science

Ati teas 6 practice test math, english and science 31. B. The correct solution is 6. Substitute the values into the formula, . Apply the cube root to both sides of the equation, feet. See Lesson: Similarity, Right Triangles, and Trigonometry. 32. D. The correct solution is 20.55 because the number of pounds purchased is pounds. The number of pounds remaining is pounds. See Lesson: Solving Real World Mathematical Problems. 33. D. The correct solution is because Solving Real World Mathematical Problems. feet. See Lesson: 34. A. The correct solution is 0.5 ton. Lesson: Standards of Measure. 6,000 oz × × = = 0.5 T. See 35. C. The correct solution is 0.015 metric ton. 15,000 g × × = = 0.015 t. See Lesson: Standards of Measure. 36. B. The correct solution is 1,016 millimeters. 40 in × × = 1,016 mm. See Lesson: Standards of Measure. Section III. Science 1. C. The pelvic cavity is a small space enclosed by the bones of the pelvis that contains the urinary bladder, part of the intestines, and the internal reproductive organs. See Lesson: Organization of the Human Body. 2. B. The midsagittal plane divides the body into two equal parts. See Lesson: Organization of the Human Body. 3. B. Homeostasis is the steady, optimal condition of a human body. See Lesson: Organization of the Human Body. 4. D. When a ventricular systole occurs, the ventricle is contracting. This is associated with the QRS complex on the electrocardiogram. See Lesson: Cardiovascular System. 5. D. As blood flows out of the right atrium into the right ventricle, the tricuspid valve prevents blood from flowing back into the right atrium. See Lesson: Cardiovascular System. 6. A. A problem with excessive bleeding and slow wound healing indicates the patient is having trouble with blood clotting. Platelets are needed to facilitate blood clotting. See Lesson: Cardiovascular System. 7. A. Intercellular chemical signals that bind to membrane-bound receptors produce rapid responses. See Lesson: Endocrine System. 8. D. Neurohormones are secreted by the nervous system. See Lesson: Endocrine System. 9. D. Specificity is the characteristic that causes chemical signals to connect only to the correct receptors. See Lesson: Endocrine System. 10. C. The most common cause of appendicitis is an obstruction. See Lesson: Gastrointestinal System. 11. A. The correct sequence of the four parts of the large intestine is ascending, transverse, descending, and sigmoid. See Lesson: Gastrointestinal System. 12. D. The small intestine has finger-like projections called villi covering the internal surface. See Lesson: Gastrointestinal System. 13. C. Malignant melanoma is the most dangerous type of skin cancer. It occurs when melanocytes experience uncontrolled cell growth and causes dark patches or lesions to form on the skin’s surface. See Lesson: Integumentary System. 14. B. Basal cell carcinoma affects basal cells in the epidermis, while squamous cell carcinoma affects keratinocytes in the epidermis. Malignant melanoma affects melanocytes in the epidermis. See Lesson: Integumentary System. 15. D. HIV can be transmitted through infected intravenous syringes, semen, vaginal secretions, and blood. See Lesson: The Lymphatic System. 16. D. Because semen and vaginal secretions are rich in macrophages, a person can become infected with HIV through sexual intercourse with an infected person. See Lesson: The Lymphatic System. 17. B. The inflammatory response begins when mast cells release histamines and other chemicals that cause capillaries to swell. See Lesson: The Lymphatic System. 18. D. There are three types of joints in the human body: synovial, immovable, and partly movable. Partly moveable joints are also called cartilaginous joints. They hold bones together by cartilage and are found in the vertebral discs of the spine. See Lesson: Muscular System. 19. D. All muscles have the ability to contract and extend. To work together, all muscles contract (or shorten) and extend (or lengthen) in pairs following stimulation from the nervous system. See Lesson: Muscular System. 20. D. Either the nervous system or circulating hormones stimulate smooth muscle. This muscle is under involuntary control through both forms of stimulation. See Lesson: Muscular System. 21. D. A neurotransmitter is a type of substance that is released from the presynaptic membrane of one neuron and binds to the receptor on the postsynaptic membrane of a different neuron. By binding, this substance stimulates excitation of the neuron causing a neural impulse to be transmitted. See Lesson: The Nervous System. 22. A. Nodes of Ranvier are the gaps in myelin sheaths that increase the speed of an electrical neural signal down the axon of a neuron. See Lesson: The Nervous System. 23. B. Pregnancy typically lasts for about 40 weeks, which are traditionally divided into three periods of about 13 weeks each called trimesters. See Lesson: Reproductive System. 24. C. Females generally begin puberty at 10–11 years old; males generally begin puberty about a year later, at 11–12 years old. See Lesson: Reproductive System. 25. C. The nervous and cardiovascular systems work with the respiratory system to regulate blood pH levels. See Lesson: The Respiratory System. 26. A. After gas exchange occurs between blood and cells in body tissues, oxygen-poor blood travels in systemic circulation back to the heart and lungs. This blood has less oxygen and more carbon dioxide. Because oxygen diffuses into the tissues to the cells, oxygen concentration is higher in the tissues than in blood that returns to the heart via the veins. See Lesson: The Respiratory System. 27. A. The heart belongs to the cardiovascular system. It pumps oxygenated blood through systemic circulation and transports deoxygenated blood back to the lungs. See Lesson: The Respiratory System. 28. B. Osteoclasts are bone cells that play a role in bone remodeling. They are found on the surface of bone and aid in bone breakdown by dissolving worn-out bone tissue. See Lesson: Skeletal System. 29. A. Bone resorption is a process that dissolves old bone tissue so that it can undergo remodeling to produce new bone tissue. When bones dissolve during the resorption process, minerals stored in reservoirs of bone are released and pushed through circulation for use. See Lesson: Skeletal System. 30. D. Sesamoid bone consists of small bones like the patella. These bones provide mechanical support and protection. See Lesson: Skeletal System. 31. D. The posterior pituitary gland at the base of the brain secretes the hormone ADH. This hormone alters how much water is excreted from urine by the kidneys. Thus, it controls the concentration and volume of urine in the body. See Lesson: The Urinary System. 32. D. After filtered fluid leaves Bowman’s capsule, which encloses the glomerulus, it travels to the proximal convoluted tubule before ending up in the loop of Henle. See Lesson: The Urinary System. 33. C. There are seven classification systems in the classical Linnaean system: kingdom, phylum, class, order, family, genus, and species. See Lesson: An Introduction to Biology. 34. D. Water is an excellent solvent that has the ability to dissolve many different substances and participate in a wide range of biochemical reactions. See Lesson: An Introduction to Biology. 35. C. Nucleic acids such as DNA and RNA are a class of biomolecules that play a role in the transmission of genetic information. See Lesson: An Introduction to Biology. 36. A. The most basic unit and building block of all living things is the cell. See Lesson: Cell Structure, Function, and Type. 37. C. Eukaryotic cells are unicellular or multicellular organisms that contain a membrane-bound nucleus. Eukaryotic cells contain several different organelles. See Lesson: Cell Structure, Function, and Type. 38. C. Animals and plants are examples of eukaryotes. Because seaweed is a type of plant, it is a eukaryote. A virus is not a cell; it is neither prokaryotic nor eukaryotic. See Lesson: Cell Structure, Function, and Type. 39. D. The ATP provides the reducing power to make carbon dioxide into sugar. See Lesson: Cellular Reproduction, Cellular Respiration, and Photosynthesis. 40. B. Chlorophyll comes from chloroplasts, which are structures found in plant cells. Leaves contain chlorophyll, which is required for photosynthesis. See Lesson: Cellular Reproduction, Cellular Respiration, and Photosynthesis. 41. A. Mitosis and meiosis are both ways that cells divide to produce new cells. However, mitosis can produce new cells asexually by using one parent cell. Meiosis requires two parent cells to produce daughter cells. See Lesson: Cellular Reproduction, Cellular Respiration, and Photosynthesis. 42. A. Diploid refers to the full number of chromosomes. See Lesson: Genetics and DNA. 43. C. In a DNA molecule, cytosine can only pair with guanine. See Lesson: Genetics and DNA. 44. C. The placebo is a false treatment given to a group to account for the body’s psychological response to this type of treatment in a study. See Lesson: Designing an Experiment. 45. D. The variable that is manipulated, or what is administered to a group as a treatment, is called the treatment group. See Lesson: Designing an Experiment. 46. A. During experimental analysis, results from data collection are analyzed for cause-and-effect relationships. See Lesson: Designing an Experiment. 47. A. Empirical evidence provides data and experimental setups that are repeatable by other people. See Lesson: Designing an Experiment. 48. B. Because iron-54 and iron-56 are isotopes of the same element, they have the same number of protons and the same atomic number, but the numbers of neutrons and mass numbers are different. See Lesson: Scientific Notation. 49. A. The atomic number for tin is 50, which means all atoms of tin have 50 protons. To determine the number of neutrons, subtract the number of protons from the mass number: 120 – 50 = 70 neutrons. Because the atom is neutral, it has 50 electrons to balance the charge of the protons. See Lesson: Scientific Notation. 50. D. There are 8 ounces in 1 cup. Multiplying 3 cups by 8 yields a total of 24 ounces. See Lesson: Temperature and the Metric System. 51. B. Using the following formula, K = °C + 273 : 85− 273 = −188. See Lesson: Temperature and the Metric System. 52. D. There are 2 cups in 1 pint. Thus, 22 pints is 44 cups. See Lesson: Temperature and the Metric System. 53. A. Celsius is part of metric system of measurement. It is a universally accepted way to record temperature values in science. See Lesson: Temperature and the Metric System. Section IV. English and Language Usage 1. A. May. Months, days, and holidays need to be capitalized, and seasons do not need to be. See Lesson: Capitalization. 2. C. I go to bed early so I do not feel tired. There should be a comma before so as it is a coordinating conjunction. See Lesson: Punctuation. 3. B. Business is the only correct spelling. See Lesson: Spelling. 4. D. Safely is an adverb that describes the verb traveled. See Lesson: Adjectives and Adverbs. 5. B. The is an article, not a conjunction. See Lesson: Conjunctions and Prepositions. 6. B. To make the word frog plural, simply add -s. See Lesson: Nouns. 7. C. Whom is a pronoun. See Lesson: Pronouns. 8. C. The subject is Mai and her friend Oksana, and the predicate is love to ride roller coasters. See Lesson: Subject and Verb Agreement. 9. A. In a command like this one, the “understood” subject is you. See Lesson: Subject and Verb Agreement. 10. A. Did is a helping verb; ask is the main verb. See Lesson: Verbs and Verb Tenses. 11. D. Unless. The word unless signifies the beginning of a dependent clause and is the only conjunction that makes sense in the sentence. See Lesson: Types of Clauses. 12. C. Which. The word which signifies the beginning of a dependent clause and is the only conjunction that makes sense in the sentence. See Lesson: Types of Clauses. 13. B. Yet. It is the only conjunction that fits within the context of the sentence. See Lesson: Types of Clauses. 14. C. This is a compound sentence joining two independent clauses with a comma and the conjunction but. See Lesson: Types of Sentences. 15. A. This option would make the sentence a simple sentence. See Lesson: Types of Sentences. 16. D. I gotta go to school. It is the sentence that uses the most slang. See Lesson: Formal and Informal Language. 17. C. Congratulations on your recent success. It is the sentence with the most formal language and no slang. See Lesson: Formal and Informal Language. 18. C. It’s sort of a bad time. The sentence has contractions and uses informal and slang words. See Lesson: Formal and Informal Language. 19. B. The meaning of bolt in the context of this sentence is “a quick movement in a particular direction.” See Lesson: Context Clues and Multiple Meaning Words. 20. D. The meaning of bind in this context is “to form a mass that stays connected.” The word “together” helps you figure out which meaning of bind is being used. See Lesson: Context Clues and Multiple Meaning Words. 21. C. The meaning of emulate in this context is “to try to be like someone you admire.” The word “imitate” helps you figure out the meaning of emulate. See Lesson: Context Clues and Multiple Meaning Words. 22. D. The meaning of novice in the context of this sentence is “beginner.” See Lesson: Context Clues and Multiple Meaning Words. 23. D. The word “leaves” has more than one meaning. See Lesson: Context Clues and Multiple Meaning Words 24. D. The suffix that means “in a manner of or resembling” is -esque as in the word grotesque. See Lesson: Root Words, Prefixes, and Suffixes. 25. C. The root that means “people” is dem as in the word democracy. See Lesson: Root Words, Prefixes, and Suffixes. 26. A. The prefix that means “former” is ex- as in the word ex-husband. See Lesson: Root Words, Prefixes, and Suffixes. 27. B. The prefix mono- means “one” so a monolingual person would only know how to speak one language. See Lesson: Root Words, Prefixes, and Suffixes. 28. B. The prefix bi- means “two,” so bilateral means “relating to two sides.” See Lesson: Root Words, Prefixes, and Suffixes.