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Which of the following regions of the body is divided into the thigh, leg, ankle, and foot?
A. Central
B. Head
C. Lower
D. Upper
C.
Which substance is plasma mostly composed of?
A. Albumin
B. Leukocytes
C. Platelets
D. Water
D
Which of the following could be a result of the effects of aging on hormones?
A. Poor sight
B. Loss of strength
C. Change in moods
D. Fluctuating weight
B
Carbohydrates are broken down into____________
A. Fructose
B. Glucose
C. Lactose
D. Sucrose
B
During basal cell carcinoma, the epidermal cells in the stratum basale...
A. invade the dermis
B. form a waterproof layer
C. undergo mitosis normally
D. fill with a large amount of keratin
A
A dermatologists explains to a patient that a bacterial infection has affected the sebaceous glands. Which layer does this form of acne directly affect?
A. Stratum basale
B.Stratum lucidum
C. Stratum corneum
D. Stratum granulosum
C
The epidermis is made of _______ layers
A. 2
B. 3
C. 5
D. 8
C
Antibodies attach to invading pathogens, marking them for________.
A. destruction
B. penetration
C. reproduction
D. transformation
A
Which describes the shape of a skeletal muscle cell?
A. Branched
B. Elongated
C. Short
D. Spindle
B
Prior to sexual intercourse, the penis becomes erect_____________.
A. by muscular actions
B. when the vas deferens elongates
C. when sperm are produced in the testicles
D. when the corpus cavernosum fills with blood
D
What structure channels food to the esophagus and air to the trachea?
A. Bronchiole
B. Capillary
C. Larynx
D. Lung
C
How many bones are in the adult human body?
A. 200
B. 206
C. 250
D. 270
B
Blood flows from the renal _______ into the kidney, where it is filtered.
A. Artery
B. sac
C. tube
D. vein
A
The Urinary tract is composed of the _______, ureter, and urethra.
A. bladder
B. glomerulus
C. kidney
D. nephron
A
Which of the following numbers has the smallest magnitude?
A. 5.14 x 10 ^-27
B. 4.65 x 10 ^-19
C. 2.87 x 10^-16
D. 5.29 x 10 ^-7
A
A namometer is equal to 1 x 10 ^-9 meter. How is this value written in standard notation?
A. 0.0000000001 m
B. 0.000000001 m
C. 1,000,000,000 m
D. 10,000,000,000 m
B
A storage tank is filled with 15 gallons of water. How many quarts of water is the tank storing?
A. 4
B. 19
C. 30
D. 60
B
It is advantageous to use the English system when
A. converting units using multiples of 10
B. describing a reported value using tons
C. working with functionally related base units
D. communicating information around the world
B
When metric prefix corresponds to an equivalent value of 1,000?
A. Centi -
B. Deci -
C. Kilo -
D. Micro -
C
A nurse converts a recorded value of 180 pounds to ounces. What unit of measurement does this correspond to?
A. Length
B. Temperature
C. Weight
D. Volume
C
D. Shivering when the body temperature falls, Secreting insulin to decrease blood sugar concentration, Increasing heart rate when blood pressure is low
Which of the following are examples of homeostatic mechanisms?
A. Increasing heart rate when blood pressure is low, Consuming excess calories to gain weight
B. Lifting weights to increase muscle mass
C. Shivering when the body temperature falls
D. Shivering when the body temperature falls, Secreting insulin to decrease blood sugar concentration, Increasing heart rate when blood pressure is low
D. Tendency of the body to maintain a stable environment
Homeostasis is defined as:
A. Ability of human beings to keep body weight within normal limits
B. Maintenance of a constant external temperature inside a room
C. Ingestion of enough food to keep hunger pains from developing
D. Tendency of the body to maintain a stable environment
B. Distal
Where is the gastrocnemius vein in relation to the femoral vein?
A. Lateral
B. Distal
C. Superior
D. Ventral
D. Unsaturated
Which is NOT a type of protein?
A. Fibrous
B. Membrane
C. Globular
D. Unsaturated
B. They are responsible for storing the fat that is found in adipose tissue
Which of the following is true regarding adipocytes?
A. They are involved in the secretion of glucose.
B. They are responsible for storing the fat that is found in adipose tissue
C. They are critical in the digestive breakdown of fat
D. They are the foundational element of muscles
A. Make proteins
What is the role of ribosomes?
A. Make proteins
B. Waste removal
C. Transport
D. Storage
D. Including baking soda in a recipe to make it less sour
Which of the following is an example of a chemical change?
A. Releasing compressed gas to make a bottle-rocket launch
B. Adding water to clay to make slip
C. Crystalizing honey to make candy
D. Including baking soda in a recipe to make it less sour
C. Valence electrons
Which of the following is exchanged between two or more atoms that undergo ionic bonding?
A. Neutrons
B. Transitory electrons
C. Valence electrons
D. Electrical charges
C. Lateral malleolus
Which of the following anatomical terms is NOT part of the knee?
A. Medial collateral ligament
B. Patella
C. Lateral malleolus
D. Lateral meniscus
D. 9
What is most likely the pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions(H+)
A. 2
B. 6
C. 7
D. 9
D. Melting, then vaporizing
What is the typical way a solid would turn to a liquid and then to a gas?
A. Vaporizing, then melting
B. Melting, then freezing
C. Vaporizing, then freezing
D. Melting, then vaporizing
D. Superior
Where is the scapula in relation to the olecranon?
A. Distal
B. Lateral
C. Ventral
D. Superior
C. The patient's symptoms and health history suggest that this test will enable the correct diagnosis to help the patient.
A doctor needs to convince his boss to approve a test for a patient. Which statement below best communicates a scientific argument that justifies the need for the test?
A. The patient looks like he needs this test.
B. The doctor feels that the patient needs this test.
C. The patient's symptoms and health history suggest that this test will enable the correct diagnosis to help the patient.
D. The patient has excellent insurance that will pay for several tests, and the doctor would like to run as many tests as possible.
C. Three
How many tissue layers does the uterus have?
A. One
B. Two
C. Three
D. Four
D. 6s
Which of the following orbitals is the last to fill?
A. 1s
B. 3s
C. 4p
D. 6s
B. Nails
Which of these body parts does NOT produce melanin?
A. Hair
B. Nails
C. Skin
D. Iris
B. Purine: Thymine
Which of these does NOT match the nitrogenous base to the nucleobase?
A. Purine: Adenine
B. Purine: Thymine
C. Pyrimidine: Uracil
D. Pyrimidine: Cytosine
A. Cellulose
Which of the following is a carbohydrate?
A. Cellulose
B. Hemoglobin
C. Estrogen
D. ATP
D. Lowering the activation energy of the reaction
Enzymes catalyze biochemical reactions by ________
A. Lowering the potential energy of the products
B. Separating inhibitors from products
C. Forming a complex with the products
D. Lowering the activation energy of the reaction
C. Pentasaccharides
Which is NOT a major type of carbohydrate?
A. Monosaccharides
B. Disaccharides
C. Pentasaccharides
D. Polysaccharides
D. CH4 + 2O2 = CO2 + 2H2O
Which of the following answers shows CH4 +2O2=CO2 +H2O as balanced?
A. CH4 + 2O2 = 2CO2 + 2H2O
B. 2CH4 + 4O2 = 2CO2 + H2O
C. 2CH4 + O2 = 2CO2 + H2O
D. CH4 + 2O2 = CO2 + 2H2O
A. NaCl
Which of the following molecules exhibits ionic bonding?
A. NaCl
B. CO2
C. C6H12O6
D. H2O
C. In the United States, most people use screens more than 3 but less than13 hours a day
Which of the following conclusions is supported by the data from this survey?
A. Dally screen usage in the United States decreases with age
B. Daily screen usage in the United States, increases with age.
C. In the United States, most people use screens more than 3 but less than13 hours a day
D. In the United States, people over 75 generally don't use screens.
A. There were not enough age groups to show a trend based on age.
Given that there are over 100 million residential addresses in the United States, which of the following best describes a flaw of this survey as it is described?
A. There were not enough age groups to show a trend based on age.
B. The addresses were chosen randomly rather than strategically
C. The distribution of ages in the sample did not reflect the actual population
D. Each response represents only one person per address
D. Hypothesis
What is a hypothetical explanation for an occurrence that is based on prior knowledge called?
A. Independent variable
B. Dependent variable
C. Trial
D. Hypothesis
C. Four
How many different types of nucleotides are there in DNA?
A. One
B. Two
C. Four
D. Eight
B. Supine
A patient lying flat on their back is in which of the following positions?
A. Prone
B. Supine
C. Lateral
D. Medial
C. Bottom-left corner
In general, where in the periodic table of elements are the elements with the largest atomic radii located?
A. Upper-right corner
B. Upper-left corner
C. Bottom-left corner
D. Bottom-right comer
D. Endocytic vesicles
Which of the following are formed when the plasma membrane surrounds a particle outside of the cell?
A. Golgi bodies
B. Rough endoplasmic reticulum
C. Secretory vesicles
D. Endocytic vesicles
A. Plants need more than 200 mL of liquid per week.
Based on these results, which of the following would be a good hypothesis to design the next experiment around?
A. Plants need more than 200 mL of liquid per week.
B. Salt has no impact on plant health.
C. Salt contains useful nutrients for plants.
D. A combination of the solutions tested will produce healthier plants.
A. Phenotype
What is the name for the physical presentation of an organism's genes?
A. Phenotype
B. Species
C. Phylum
D. Genotype
D. A tissue contains a single cell type that works to perform a specific function.
Which of the following statements is FALSE?
A. An organelle is a specialized structure in a cell, such as a ribosome.
B. An organ is made up of similar tissues that perform the same function.
C. Organ systems are two or more organs performing similar functions.
D. A tissue contains a single cell type that works to perform a specific function.
A. The transport of oxygen and other nutrients to the tissues via the cardiovascular system
Which of the below is the best definition for the term circulation?
A. The transport of oxygen and other nutrients to the tissues via the cardiovascular system
B. The force exerted by blood against a unit area of the blood vessel walls
C. The branching air passageways inside the lungs
D. The process of breathing in
A. Two genes next to each other on a chromosome
Which of the following does NOT obey the law of independent assortment?
A. Two genes next to each other on a chromosome
B. Two genes on opposite ends of a chromosome
C. Flower color and height in snapdragons
D. Seed color and flower color in peas
B. The duodenum
Which section of the digestive system is responsible for receiving chyme and further digesting it?
A. The large intestine
B. The duodenum
C. The jejunum
D. The gallbladder
C. The ability to prevent earthquakes and other natural disasters
Which of the following is NOT provided as a result of the valid research and observations recorded by scientists?
A. A better understanding of the physical world
B. The ability to predict possible outcomes affected by actions
C. The ability to prevent earthquakes and other natural disasters
D. The creation of various substances and technologies that enhance our world
D. Inversion
What type of mutation is represented by the following sequence?
Original: 123456
Mutated: 154326
A. Breakage
B. Deletion
C. Insertion
D. Inversion
A. Pituitary, Pancreas
Which of the following anatomical structures is directly involved in the production of hormones?
A. Pituitary, Pancreas
B. Penis, Pons
C. Pancreas, Penis
D. Prostate, Pancreas
C. Micrometers
There are three Insects that are being compared under a microscope. As a scientist, you decide that measuring them would be an important part of recording their data. Which unit of measurement would best for this situation?
A. Centimeters
B. Meters
C. Micrometers
D. Kilometers
A. The independent variable is the amount of salt, and the dependent variable is the temperature at which the water boils.
A chemistry experiment is performed to determine the effect of a nonvolatile solute on the boiling point of water. Three trials are performed in which 10 mg, 20 mg, and 30 mg of salt are added to 500 mL of distilled water. Each solution is heated on a hot plate, and the elevated boiling points are recorded.Determine the dependent and independent variables in this question.
A. The independent variable is the amount of salt, and the dependent variable is the temperature at which the water boils.
B. The independent variable is the amount of water, and the dependent variable is the temperature at which the water boils.
C. The independent variable is the temperature at which the water boils, and the dependent variable is the amount of salt.
D. The Independent variable is the amount of salt, and the dependent variable is the amount of water.
C. Specialized structures within a cell
Which of the following statements best defines an organelle?
A. Layer of polysaccharides outside the plasma membrane of cells
B. Abnormal Infectious proteins
C. Specialized structures within a cell
D. Collection of tissues used to serve a specific function
D. Liquids have no definite shape and no definite volume.
Which of the following statements concerning the states of matter is NOT true?
A. Plasmas are high-temperature collections of ions and free electrons.
B. Solids are the least compressible due to the more rigid positions of the particles.
C. Gases have no definite volume and expand to fill their containers
D. Liquids have no definite shape and no definite volume.
A. Negative feedback
When animals eat, insulin is released from the pancreas, stimulating glucose uptake by the liver. When glucose levels drop, the pancreas reduces insulin release. This is an example of which mechanism for maintaining homeostasis?
A. Negative feedback
B. Positive feedback
C. Stress response
D. Parasympathetic regulation
D. They are always active on more than one kind of substrate.
Which of the following is NOT a characteristic of enzymes?
A. They change shape when they bind their substrates.
B. They can catalyze reactions in both forward and reverse directions.
C. Their activity is sensitive to changes in temperature.
D. They are always active on more than one kind of substrate.
A. Single replacement
What types of reaction is Cu (s) + 2AgNO3(aq)→2Ag(s) + Cu(NO3)2(aq)?
A. Single replacement
B. Double replacement
C. Synthesis
D. Decomposition
B. Area B
Identify the location where neurotransmitters are stored immediately prior to use.
A. Area A
B. Area B
C. Area C
D. Area D
C. Left ventricle
Which of the heart chambers is the largest?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
B. Axon
Which structure of the nervous system carries action potential in the direction of a synapse?
A. Cell body
B. Axon
C. Neuron
D. Myelin
B. ASD may be genetic.
Every child in a certain family has been diagnosed with autism spectrum disorder (ASD). Based on this evidence, what possible conclusion can be drawn about ASD?
A. ASD may be lethal.
B. ASD may be genetic.
C. ASD is related to traditional nuclear family structures
D. No conclusion can be drawn based on this evidence.
B. Correlation can show cause and effect.
Which of the following is NOT true concerning correlation?
A. Correlation can show the relationship between variables.
B. Correlation can show cause and effect.
C. Correlation can show linear relationships.
D. Correlation can show nonlinear relationships.
A. Other scientists can validate or disprove the findings.
A group of researchers have conducted a study examining the impact of a new medication on blood pressure.
What is the purpose of submitting the study for publication in a peer-reviewed journal?
A. Other scientists can validate or disprove the findings.
B. Publication in a peer-reviewed journal will guarantee acceptance of the study's conclusions.
C. Publication in a peer-reviewed journal is unnecessary for this type of study.
D. Publication in a peer-reviewed journal will lead to the manipulation of the study's results.
Which blood group is a universal donor?
A. A
B. B
C. AB
D. O
D. O
Blood oxygen levels are most likely low when blood _____.
A. leaves the aorta
B. fills the right atrium
C. reaches body tissues
D. flows through arteries
B. fills the right atrium
An intracellular chemical signal can be produced in the cell membrane. Once it is produced, where does it go?
A. To a different cell
B. To another part of the same cell
C. To a region right outside the cell
D. To an area with a high ion concentration
B. To another part of the same cell
After food has been masticated in the oral cavity, where does it go next?
A. Colon
B. Liver
C. Pancreas
D. Pharynx
D. Pharynx
The diffusion of nutrients through the walls of the digestive system is critical to homeostasis in the body. Where does the majority of this diffusion take place in the digestive system?
A. Stomach
B. Esophagus
C. Oral cavity
D. Small intestine
D. Small intestine
As soon as an invader, known as a(n) _____, enters the body, the body begins to fight.
A. antibody
B. pathogen
C. trigger
D. vaccination
B. pathogen
Where is skeletal muscle found?
A. Inside the heart
B. Attached to bone
C. Lining the walls of the bladder
D. Within the gastrointestinal tract
B. Attached to bone
If a person smells something sweet, what form of information is this initially perceived as in the nervous system?
A. Cognitive
B. Integrative
C. Motor
D. Sensory
D. Sensory
While hiking, a person is startled after encountering a bear. Her palms get sweaty and her heart starts racing. Which part of her nervous system was directly stimulated?
A. Central
B. Parasympathetic
C. Somatic
D. Sympathetic
D. Sympathetic
Which of the following types of tissues include cells of the immune system and of the blood?
A. Connective
B. Epithelial
C. Muscle
D. Neural
A. Connective
Which choice best describes homeostasis?
A. A functional system of the body
B. Blood flow to every cell in the body
C. A relatively constant environment within the body
D. Neural pathways that have integrated into the body
C. A relatively constant environment within the body
Fertilization (the fusing of one sperm and an ovum) results in a(n) _____.
A. embryo
B. fetus
C. infant
D. zygote
D. zygote
Which of the following are included in the male reproductive system?
A. the penis and epididymis
B. the vas deferens and uterus
C. the penis and Fallopian tubes
D. the penis, scrotum, and cervix
A. the penis and epididymis
What structure plays a role in air conduction?
A. Alveolus
B. Capillary
C. Lung
D. Trachea
D. Trachea
What body system is the skeletal system most closely associated with when hematopoiesis happens?
A. Urinary system
B. Digestive system
C. Muscular system
D. Cardiovascular system
D. Cardiovascular system
What is the final structure through which urine must travel to empty out of the body?
A. Bladder
B. Kidney
C. Ureter
D. Urethra
D. Urethra
Which sequence describes the hierarchy level of biological organization?
A. Kingdom, phylum, class, order, family, genus, and species
B. Genus, class, kingdom, species, order, phylum, and family
C. Genus, class, kingdom, species, order, phylum, and family
D. Species, kingdom, genus, class, family, phylum, and order
A. Kingdom, phylum, class, order, family, genus, and species
Which example is part of the scientific method?
A. A student reads about a new way to harness energy from the sun.
B. A researcher studies the effects of car exhaust on how people breathe.
C. A researcher analyzes how many plants respond well to a new fertilizer
D. A student discovers how insulin plays a role in the development of diabetes
C. A researcher analyzes how many plants respond well to a new fertilizer
What standard is used to make comparisons in experiments?
A. Sample size
B. Control group
C. Dependent variable
D. Independent variable
B. Control group
Why did it take many years for the cell theory to be developed?
A. Advancements in microscopy took place slowly.
B. Cells were difficult to isolate for experimental analysis
C. Researchers believed a cell formed from preexisting cells
D. Scientists already proved that cells were essential for life.
A. Advancements in microscopy took place slowly.
What organelle is only associated with plant cells?
A. Cell wall
B. Ribosome
C. Cytoplasm
D. Golgi apparatus
A. Cell wall
Which of the following is supported by the cell theory?
A. Cells are alive and recognized as the building blocks for life.
B. Scientists can identify and differentiate cells by using a microscope
C. Cells are produced from existing cells using meiosis instead of mitosis.
D. Living things are composed of a single cell that remains undifferentiated
A. Cells are alive and recognized as the building blocks for life.
What raw inorganic material would an autotroph most likely use to create chemical energy for growth?
A. carbon dioxide
B. minerals in soil
C. decaying matter
D. sugar molecules
B. minerals in soil
When would a cell most likely contain the most nucleotides?
A. S
B. G1
C. M
D. G2
B. G1
What is the correct order of the stages of the cell cycle?
A. G1,S,G2,M
B. G2,S,G1,M
C. M,S,G2,G1
D. S,M,G1,G1
A. G1,S,G2,M
A student notices a pattern of stripes on five tigers. Each of the five tigers has the same stripe pattern. Using his inductive reasoning, what does he logically assume based on this information?
A. The pattern continues to change over time.
B. Natural adaptations cause this pattern to occur
C. Each offspring will have the same stripe pattern
D. Ancestors of the tigers have different stripe patterns
C. Each offspring will have the same stripe pattern
A researcher notices a positive correlation between the height of a plant and nutrient concentration over time. Based on this observation, what conclusion does he reach?
A. The height of a plant increases in the absence and presence of the nutrients
B. When the amount of nutrients available to the plant decreases, its height increases.
C. The amount of nutrients available to a plant is independent of how tall the plant gets
D. When the amount of nutrients available to the plant increases, its height also increases.
D. When the amount of nutrients available to the plant increases, its height also increases.
Which statement best represents Mendel's experiments with garden peas?
A. As a result, Mendel developed several theories that have since been disproved.
B. Mendel realized he was on an incorrect track, which led him to other experimental media
C. As a result, Mendel developed foundational conclusions that are still valued and followed today.
D. Mendel collaborated with others interested in genetics to develop heredity guidelines we still use today
D. Mendel collaborated with others interested in genetics to develop heredity guidelines we still use today
Which of the following is a component of a chromosome?
A. Centromere
B. Gamete
C. Homologue
D. Ribose
A. Centromere