ATI TEAS 2024 Updated Exam Science

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WITH CORRECT ANSWERS RATED A+The first four steps on the scientific method are as follows:I.Identify the problem.II.Ask questions.III.Develop a hypothesis.Iv. Collect data and experiment on that data.Which of the following is the fifth step in the scientific method?A. Observe the data.B.Analyze the results.C.Measure the data.D.Develop a conclusion. - answerB. Analyze the results.- There are six steps in the scientific process. The results of step four must beanalyzed before reaching the final step. "Develop a conclusion."Which of the following is FALSE regarding the use of qualitative and quantitativedata in scientific research?A. Quantitative data is collected through numerical measurements.B.Quantitative data is more accurate than qualitative data.C.Qualitative data is focused on perspectives and behavior.D. Qualitative data is collected through observation and interviews. - answerB.Quantitative data is more accurate than qualitative data.The two types of measurement important in science are qualitative (When anumerical result is used) and qualitative (when descriptions or qualities arereported).

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- Qualitative data is collected through observation and interviews, and focuses onthe informant's behavior and perspectives.THE NEXT QUESTION REFERS TO THE FOLLOWING GRAPHICS:The chart above shows the average snowfall in inches for a two on Michigan'sUpper Peninsula, during the months November through April. Which of thefollowing can be concluded based on the information that is provided in thechart?A. April is not a good month to go skiing in the Upper Peninsula.B.Snowfall blocks the sunshine reduces the number of sunny days.C.The fewest sunny days occur in the months with the heaviest snowfall.D. There is no connection between the amount of snowfall and the number ofsunny days. - answerC.The chart shows two specific changes: snowfall levels from November to Apriland sunny days from November to April.Which of the following statements correctly describes the function of thecorresponding physiologic structure?A. The trachea connects the throat and the stomach, encouraging food to followthis path through contractions.B.The esophagus is the cylindrical portion of the respiratory tract that joins thelarynx with the lungs.C.the diaphragm is a muscle that controls the height of the thoracic cavity,decreasing the height on contraction, and increasing the height on relaxationcausing expiration.D.The epiglottis covers the trachea during swallowing, preventing food fromentering the airway.- answerD. The epiglottis covers the trachea during swelling, thus preventingfood from entering the airway.- The trachea (windpipe) is cylindrical portion of the reparatory tract that joins thelarynx with the lungs.

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- The esophagus connects the throat and the stomach. When a person swallows,the esophagus contracts to force the food down into the stomach. The esophagussecretes mucus for lubrication.- The diaphragm is a muscle that controls the height of the thoracic cavity,increasing the height on contraction (inspiration), and decreasing the height onrelaxation (expiration).Which of the following is an example of the location and function of cartilage int hebody?A. The dense connective tissue that comprises the better part of the structuralskeleton.B.The supportive pads that provide cushion at joints, such as between thevertebrae of the spinal cord.C.The connective structure made of fibrous collagen that connects muscles andbones, such as the connection of the patella to the quadricep.D. The layer beneath the skin and on the outside of internal organs that providescushioning and protection. - answerB. The pads that support the vertebrae aremade up of cartilage.- Cartilage, a strong form of connective tissue, cushions ad supports the joints.Cartilage also makes up the larynx and the outer ear.- Bone is a form of connective tissue that comprises the better part of theskeleton. It includes both organic and inorganic substances.- Tendons connect the muscles to other structures of the body, typicallybones. Tendons can increase and decrease in length as the bones move.- Fat is a combination of lipids; in humans, fat forms a layer beneath the skin andon the outside of the internal organs.Two criteria for classifying epithelial tissue are:A. Cell type and cell functionB.Cell shape and cell typeC.Cell layers and cell shapeD. Cell function and cell layers - answerC. Cell layers and cell shape are thecriteria for classifying epithelial tissue.

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- Cell layers refers to the amount of cells that separate the basement membranefrom the surface, such as a simple single layer, a stratified layer (2 or more), or apseudostratfied layer.- Cell shapes refer to the shape of the outer cells and can be squamous, columnar orcuboidal.Where is the parathyroid gland located?A. On the lateral lobes of the thyroid gland, on the posterior aspect.B.On the pyramidal lobe of the thyroid gland, on the posterior aspect.C.On the lateral thyroid gland, on the anterior aspect.D. On the left lateral lobe of the thyroid gland, on the anterior aspect. - answerA.The parathyroid gland is located on the lateral lobes of the thyroid gland in theneck, on the posterior aspect.- It is part of the endocrine system.- When the supply of calcium in blood diminishes to unhealthy levels, theparathyroid gland motivates the secretion of a hormone that encourages thebones to release calcium into the bloodstream. The parathyroid Gand alsoregulates the amount of phosphate in the blood by stimulating the excretionof phosphates in the urine.How many organ system are in the human body?A. 12B.15C.9D.11 - answerD. There are 11 organ systems n the human body.- Circulatory System- Digestive System- Endocrine System- Integumentary System- Lymphatic System- Muscular System

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- Nervous System- Reproductive System- Respiratory System- Skeletal System- Urinary SystemWhich element or structure within the respiratory system is responsible forremoving foreign matter from the lungs?A. Bronchial tubesB.CiliaC.TracheaD.Alveoli - answerB. Cilia.- The cilia are the tiny hairs in the respiratory system that are responsible forremoving reign matter from the lungs.- The cilia are located within the bronchial tubes, but it is the cilia that have theresponsibility for removing inappropriate materials before they enter the lungs.Organized from highest to lowest, what is the hierarchy of the human body'sstructures is as follows:- Organism, organ systems, organs,tissues. Which of the followingcomes next?A. Organs, cells, tissues, molecules, atomsB.Organ system, organism, organ, cells, tissues, atoms, moleculesC.Organism, organ system, organs, tissues, cells, molecules, atomsD. Organism, organ, cells, tissues, molecules, atoms - answerC. The order ofhierarchy of human body structures is as follows:- Organism- Organ systems

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- Organs- Tissues- Cells- Molecules- AtomsMuscles are types of tissues, so muscles do not have a separate place in thehierarchy but instead fall within the types of tissues.THE NEXT TWO QUESTIONS ARE BASED ON THE PERIODIC TABLEOn average, how many neutrons does one atom ofbromine(Br) have? Atomic # - 35Atomic mass - 79.9A. 35B. 44.90C. 45D. 79.90 - answerB. 44.9079.9-35 = 44.90On average, how many protons does one atom of zinc(Zn) have? Atomic # - 30Atomic mass - 65.39A. 30B.35C. 35.99

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D. 65.39 - answerA. 30The number of protons is the same for every atom of a given element and is theelements's atomic number; in this case 30 for Zinc (Zn).Which statement below correctly describes the movement of molecules in thebody and/or in relation to the external environment?A. Osmosis is the movement of a solution from and area of low soluteconcentration to an area of high solute concentration.B.Diffusion is the process in the lungs by which oxygen is transported from the air tothe blood.C.Dissipation is the transport of molecules across a semipermeable membranefrom an area of low concentration to high concentration, requiring energy.D. Reverse osmosis is the movement of molecules in a solution from an area of highconcentration to an area of lower concentration. - answerB. In the lungs, oxygen istransported from the air to the blood through the process of diffusion.In which molecules passively move from an area of high concentration to lowconcentration.Specifically, the alveolar membranes withdraw the oxygen form the air in thelungs into the bloodstream.- Osmosis is the passive movement of a water from an area of low soluteconcentration to an area of higher solute concentration through a permeablemembrane.- Reverse osmosis is the active transport of water opposite the concentrationgradient from an area of low solute concentration to high solute concentration.- Dissipation is a more general reference of the spread or loss of energy.Which gland is responsible for the regulation of calcium levels?A. the parathyroid glandsB.the pituitary glandC.the adrenal glandsD.the pancreas - answerA. The parathyroid glands

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The parathyroid glands are four small glands that isa on top of the thyroidgland and regulate calcium levels by secreting parathyroid hormone.The hormone regulates the amount of calcium and magnesium that is excreted bythe kidneys into the urine.Which statement matches the function to the organ of the digestive system?A. The large intestine reabsorbs water int he body to form solid waste.B The duodenum is the middle section of the small intestine in which acids, fat,and sugar are absorbed.C. The jejunum is the first part of the small intestine that receives chyme formthe stomach and further digests it prior to entering the large intestine.D. The gallbladder produces insulin to assist in the transport of sugars form theblood to the organs. - answerA. The large intestine's main function is thereaborsptlon of water into the body to form solid waste.It also allows for the absorption of vitamin K produced by microbes livinginside the large intestine.- The duodenum is the first second of the small intestine that receives partiallydigested food from the stomach, also called chyme, further digestion tit with thehelp of enzymes released by the gall bladder, before it enters into the smallintestine.- The pancreases (not the gall bladder) releases insulin to assist in the removaland transport of sugar in the body.- The jejunum is the second portion of the small intestine in which amino acids,fatty acids, and sugars are absorbed.In your garden, you noticed that the tomato plants did better on the north side ofyour house than the west side and you decided to figure out why. They are bothplanted with the same soil that provides adequate nutrients to the plant, and theyare watered at the same time during the week. Over the course of a week, youbegin to measure the amount of sunlight that hits each side of the house anddetermine that the north side gets more light because the sunlight is blocked bythe house's shadow on the west side. What is the name of the factor in yourobservations that affected the tomato plants growth?A. the control

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B.the independent variableC.the dependent variableD. The conclusion - answerB. The conclusion was that the amount of sunlightreceived by the pants was affecting their growth.- The independent variable was the amount of light that was given to the plantsand could have been manipulated by the experiment by moving the plants oradding equal parts of light.- No control was used in this experiment.Which of the following describes one responsibility of the integumentary system?A. Distributing vital substances (such as nutrients) throughout the bodyB.Blocking pathogens that cause diseaseC.Sending leaked fluids from cardiovascular system back to the blood vesselsD. sorting bodily hormones that influence gender traits. - answerB. Theintegumentary system includes skin, hair, and mucous membranes, all of whichare responsible-in part, at least-for blocking disease-causing pathogens fromentering the bloodstream.- The circulatory system distributes vital substances through the body.- The lymphatic system sends leaked fluids from the cardiovascular systemback to the blood vessels.- The reproductive system stores bodily hormones that influence gender traits.When are the parasympathetic nerves active within the nervous system?A. when an individual experiences a strong emotion, such as fear or excitement.B.when an individual feels pain or heat.C.when an individual is either talking or walking.D. when an individual is either resting or eating. - answerD. The parasympatheticnerves are active when an individual is ether resting or eating.

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- The sympathetic nerves are active when an individual experience a strongemotion, such as fear or excitement.- Feeling pain and hat fall under the responsibility of the sensory neurons.Talking and walking fall under the responsibility of the ganglia within thesensory-somatic nervous system.Which of the following best described the relationship between the circulatorysystem and the integumentary system?A. removal of excess heat from body.B.hormonal influence on blood pressureC.regulation of blood's pressure and volume.D. development of blood cells within marrow. - answerA. The integumentarysystem coordinates with the circulatory system to remove excess heat form thebody. The superficial blood vessels (those nearest the surface of the skin) dilate toallow the heat to exit the Boyd.- The hormonal influence on blood pressure is the result of the relationshipbetween the circulatory system and the endocrine system.- The urinary system is responsible for assisting the regulation of blood's pressureand volume.- The skeletal system is responsible for assisting the development of bloodvessels within the marrow.Which of the following statements describes the path of blood entering into theheart?A. Blood enters the heart through the pulmonary vein, into the right atrium,through the tricuspid have to the right ventricle.B.Once the right ventricle is full, blood exits into the pulmonary artery and thenempties into the left ventricle.C.After traveling through he lungs, oxygenated blood enters into the left atrium,then through the mitral valve to the left ventricle.D. Once the left ventricle is full, the left tricuspid valve shuts, the ventriclecontracts, and blood exists through the aorta. - answerC. Blood returns to theheart from both the inferior and superior vena cava, entering into the right atrium,though the tricuspid valve, and into he right ventricle.

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Once the right ventricle is full, the tricuspid valve closes, and upon heartcontraction, the blood is pumped through the pulmonary artery, becomingoxygenated in the lungs. The blood returns to the heart from the lungs through thepulmonary vein, into the left atrium, through the mitral valve, and into the leftventricle.When the left ventricle is full, the mitral valve closes, and the hartcontracts and distributes the newly oxygenated blood throughout the Boyd throughthe aortic valve and into the aorta.The part of the human excretory system most responsible for maintainingnormal body temperature is the :A. kidneyB.bladder.C.liverD. sweat glands - answerD. Blood is cooled as it passes through capillariessurround the sweat glands.Heat is absorbed along with excess salt and water and transferred to the glandsas sweat. Droplets of sweat then evaporate from the skin surface to dissipateheat and cool the body- The kidney, bladder, and liver are NOT involved in regulating body temperature.A part of which body system controls fluid loss, protects deep tissues, andsynthesizes vitamins D?A. the skeletal systemB.the muscular systemC.the lymphatic systemD. The integumentary system - answerD. The skin is a part of the integumentarysystem, along with the heart, nails, nerves, and glands.The skin controls fluid loss, protects deep tissues, and synthesizes vitamin D.- The skeletal system gives the body its bony supporting structure, protectsvital organs, collaborates with muscles in body movement, stores calcium,and produces red blood cells.- The muscular system maintains posture, collaborates with the bones in the body

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movements,

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uses energy, and generates heat.- The lymphatic system retrieves fluids leaked from capillaries and contains whiteblood cells, and part of it support parts of the immune system.There are three insects that are being compared under a microscope. As ascientist, you decide that measuring them would be an important part ofrecording their data, which unit of measurement would best for this situation?A. centimetersB.metersC.micrometersD.kilometers - answerC. micrometersThe best use of the International System of Units (SI) for this situation would bethe use of the micrometer as it is the smaller unit of measurement provided andthe scientist is using a microscope to view the insects.The respiratory systemoxygen andcarbon dioxide.A. inhale; exhaleB.delivers; expelsC.creates; absorbsD.exhales; inhale - answerB. delivers; expels- Our respiratory system inhales air, of which oxygen is one component. From thatinhaled air, the reparatory system delivers oxygen to the body.Though gas exchange, it then expels carbon dioxide (CO2) from the body as weexhale.- The respiratory system obtains oxygen from the air we inhale; it does not createit, and it expels CO2 rather than absorbing it. We do not use our rxepiratyroysystems to exhale oxygen or inhale CO2.Which statement below accurately describes the function of its element?A. collagen is a spongy fatty compound that creates a padding betweenbones and other structures.

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B.hemoglobin is the amount of red blood cells that are present in blood, which canreflect disease states, hydration, and blood loss.C.lymph is tissue that forms into nodes through which blood is filtered and cleaned.D. an antigen stimulates the production of antibodies. - answerD. the name for asubstance that stimulates the production of antibodies is an antigen.An antigen is any substance perceived by the immune system as dangerous.When the body senses an antigen, it produces an antibody.- Collagen is one the components of bone, tendon, and cartilage. It is a spongyprotein that can be turned into gelatin by boiling.- Hemoglobin is the part of red blood cells that carries oxygen. In order for theblood to carry enough oxygen to the cells of the body, there has to be asufficient amount of hemoglobin.- the lymph is a near-transparent fluid that performs a number of functions inthe body. It removes bacteria from tissues, replaces lymphocytes in the blood,and moves fat away from he small intestine. Lymph contains white blood cells.The lymph node is the tissue through which lymph travels in this filteringprocess.Which group of major parts and organs make up the immune system?A. lymphatic system, spleen, tonsils, thymus, and bone marrow.B.brain, spinal cord, and nerve cells.C.heart, veins, arteries, and capillariesD. nose, trachea, bronchial tubes, lungs, alveolus, and diaphragm. - answerA. Theimmune system consists of the lymphatic system, spleen, tonsils, thymus, and bonemarrow.- The nervous system consists of the brain, spinal cord, and nerve cells.- The circulatory system consists of the heart, veins, arteries, and capillaries.- The respiratory system consists of the nose, trachea, bronchial tubes,lungs, alveolus, and diaphragm.THE NEXT TWO QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION.

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A student is conducting an experiment using a ball that is attached to the end of astring on a pendulum. The student pulls the ball back so that it is at an angle to itsresting position. As the student releases the ball, it swings forward and backward.The student measures the time it takes the ball to make on complete period. Aperiod is defined as the time it takes the ball to swing forward and back again to itsstarting positions. That is repeated using different string lengths.Lengthening the string of the pendulum increases the time it takes the ball tomake on complete period.What correction would you have the student make to the hypothesis?A. Turn it into an "if/then" statement.B.Add the word "will1' in the middle after the word "pendulum.C.Switch the order of the sentence so that the phrase about the period comes first,and the phrase about the string's length is last.D.No corrects are needed. - answerA. Turn it into an "if/then" statement.A formalized hypothesis written int he form of an if/then statement can be tested.A statement may make a prediction or imply a cause/effect relationship, but thatdoes not necessarily make it a good hypothesis.THE NEXT TWO QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION.A student is conducting an experiment using a ball that is attached to the end of astring on a pendulum. The student pulls the ball back so that it is at an angle to itsresting position. As the student releases the ball, it swings forward and backward.The student measures the time it takes the ball to make on complete period. Aperiod is defined as the time it takes the ball to swing forward and back again to itsstarting positions. That is repeated using different string lengths.What would be an appropriate control variable for this experiment?A. the periodB.the length of the stringC.the mass of the ballD.the color of the ball - answerC. The mass of the ball.

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The mass of the ball is appropriately called a control variable for the experiment.A control or controlled variable is a factor that could be varied, but for testingpurpled should remain the same throughout all experiences, otherwise, it couldaffect the results.Which of the following does not exist in RNA?A. uracilB.thymineC.cytosineD. guanine - answerB. The substance thyme does notexist in RNA. The bases of RNA include uracil, cytosine,guanine, and adenine.In which of the following muscle types are the filaments arranged in a disorderlymanner?A. cardiacB.smoothC.skeletalD. rough - answerB. Smooth muscle tissue is said to be arranged in a disorderlyfashion because it is not striated like the other two types of muscle: cardiac andskeletal. Striations are line that can only be seen with a microscope.- Smooth muscle is typically found in the supporting tissues of hollow organs andblood vessels.- Cardiac muscle is found exclusively in the heart; it is responsible for thecontractions that pump blood throughout the body.- Skeletal muscle, by far the most preponderant in the body, controls themovements of the skeleton. The contractions of the skeletal muscle are responsiblefor all voluntary motion. There is no such thing as rough muscle.Which of the following hormones is correctly attached with the gland/organ it isproduced by?A. insulin; kidney

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B.testosterone; thyroidC.Melatonin; pinealD.epinephrine; gall bladder - answerC. Melatonin is produced by the pineal gland.One the primary function of melatonin is regulation of the circadian cycle, which isthe rhythm of sleep and wakefulness.- Insulin helps regulate the amount of glucose in the blood. Without insulin, thebody is unable to covert blood sugar into energy.- Testosterone is the main hormone produced by the testes; it is responsible forthe development of adult male sex characteristics.- Epinephrine, also known as adrenaline, performs a number of functions; itquickens and strengthens the heartbeat and dilates the bronchioles. Epinephrineis one the hormones secreted when the body sense danger.Which of the following best describes a section that divides the body into equalright and left parts?A. Midsagittal planeB.Coronal planeC.Oblique planeD. Frontal plane - answerA. The midsagittal plane refers to a lengthwise cut thatdivides the body into equal right and left portions; it is also called the medialplane.- The frontal or coral plane refers to ta cut that divides the body into anteriorand posterior sections- The oblique plane is when a cylindrical organ is sectioned with an angular cutacross the organ.In the development of genetic traits, one gene must match to onefor the traitsto develop correctly.A. codonB.protein

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C.amino acidsD. chromosomes - answerB. In the development of genetic traits, one genemust match to a portion for a genetic trait to develop correctly.Which of the following is not composed of striated muscle?A. quadricepsB.uterusC.tricepsD.gastrocnemius - answerB. Uterus.Skeletal or striated muscles are voluntary muscles that help support the skeletalstructures.Example of striated muscles are the biceps, triceps, quadriceps, gluteus, andgastrocnemius muscles to name a few.Smooth or involuntary muscles are muscles primarily found in the visceralorgans such as the intestines, prostate, reproductive organs, bladder andtrachea.Which of the following is NOT found in the dorsal cavity of the body?A. cerebellumB.heartC.brainstemD spine - answerB. HeartThe vertebral cavity (containing the spine) can be found in the dorsal cavity alongwith the cranial cavity (containing the brain). The ventral body cavity is divided intoseveral subsections; the thoracic and abdominopelvic cavities.- The heart is int he thoracic cavity, the stomach is int he abdominal cavity, andthe testes are the pelvic cavity.Which of the following best describes the careful ordering of molecules withinsolids that have a fixed shape?A. physical bonding

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B.par moleculesC.metalloid structure□.crystalline order - answerD. Crystalline orderSolids with a fixed shape have crystalline order that defines and maintains thatshape.Which of the following statement properly describes how the structure moves duringinspiration?A. the lungs contract on inspirationB.the diaphragm moves downward on inspirationC.the ribs remain fixed during inspirationD. the heart moves inward on inspiration - answerB. The diaphragm movesdownward or contracts to increase the space in the thoracic cavity.- This downward motion inflates the lungs and contrast the ribs.- The heart's position does not change during inspiration or expiration.Which of the following describes the transport network that is responsible for thetransference of proteins throughout a cell?A. gogli apparatusB.endoplasmic reticulumC.mitochondriaD.micleolus - answerB. Endoplasmic ReticulumThe endoplasmic reticulum is the cell's transport network that moves proteinsform one part of the ell to another.- The Golgi apparatus assist int he transport but is not the actual transport network.- Mitochrondia are organelles ("tiny organs") that help in the production of ATP,which the cells need to operate properly.- The nucleolus participates in the production of ribosomes that are needed tgenerate proteins for the cell.

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What occurs during the anaphase of mitosis?A. chromosomes, originally in pairs, separate from their daughters and move to theopposite ends (or poles) of the cell.B.the mitotic spindle fibers begin to formC.the chromosomes align int he middle of the cellD.two nuclei form, surrounded each by a nuclear membrane - answerA.There are four phases of mitosis: the prophase, metaphase, anaphase, andtelophase.- During the prophase of mitosis, the mitotic spindle fibers begin to form.- Next, during the metaphase, the chromosomes line up in the middle of the cell.- Next, in the anaphase of mitosis, the chromosomes originally in pairs,separated move to the opposite ends of the cells.- then, during the telophase, two nuclei form around the separatedchromosomes, each surrounded by a nuclear membrane.Using the table below, what conclusions can be made about the students' scores?A. the scores increased as the year progressedB.the girls did better than the boys on the test each quarter.C.the test was about mathD. the scores were heavily impacted by the test reviews that were provided -answerA. The table reflects student scores for each quarter.The trend that can be seen int he graph is an increase in scores as the yearprogressed.- The graph label mentions a test review, but there is not enough information abutthat to know if that is the reason for the scores changing.Which of the following statements is correct about normal human lung anatomy?A. the right lung has three lobes; the left lung has two lobes.

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