TEAS Science #3

Question 1 of 61

The _______carries oxygen depleted blood away from the heart, while the ________ carries oxygen-rich blood back towards the heart.

pulmonary artery; pulmonary vein
pulmonary vein; pulmonary artery
aorta; pulmonary artery
vena cava; pulmonary artery

Question 2 of 61

When does the nuclear division of somatic cells take place during cellular reproduction?

interphase
cytokinesis
mitosis
meiosis

Question 3 of 61

Which cells are found in the skin and assist in boosting immune function?

Langerhans cells
Melanocytes
Reticular fibers
Eccrine glands

Question 4 of 61

A young woman fell and suffered a scaphoid fracture. Which of the following areas is the scaphoid located?

Wrist
Face
Shoulder
Spine

Question 5 of 61

When a certain plant is introduced into an area, the population of a certain insect species declines. What can be concluded from this?

All of these explanations may be possible; further investigation is necessary to determine which is true.
The plant is toxic to the insect in question.
The insect population was declining anyway; the fact it happened when the plant was introduced is a coincidence.
The plant competes with and drives out plants that the insect feeds on.

Question 6 of 61

What is the term for the gap between neurons, where hormones and other messenger ions can pass from one cell to the next?

Dendrite
Axon
Synapse
Ganglion

Question 7 of 61

Hexane has which of the following types of chemical bonds?

double and triple bonds
all single bonds
single and triple bonds
single and double bonds

Question 8 of 61

Which type of cells make up the myelin sheaths?

Dendrites
Melanocytes
Glial cells
Squamous cells

Question 9 of 61

What is the process called in which a substance changes from a gas to a liquid?

Condensation
Evaporation
Sublimation
Vaporization

Question 10 of 61

Which of the following is a carbohydrate?

Collagen
ATP
Myosin
Cellulose

Question 11 of 61

Which of the following is surgically altered during a vasectomy?

Vas deferens
Glans penis
Prostate
Urethra

Question 12 of 61

The triceps reflex ____.

causes the triceps to relax and the upper arm to pronate and extend
forces contraction of the biceps, relaxation of the biceps, and arm extension
causes the triceps to contract, causing the forearm to supinate and flex
forces contraction of the triceps and extension of the arm

Question 13 of 61

Which of the following is NOT a function of the nervous system?

Regulating the body through hormonal production
Processing and integrating sensory input
Extracting information about the environment
Sending signals to the muscles to induce contraction

Question 14 of 61

In an oxidation reaction ____.

An oxidizing agent loses electrons.
A reducing agent gains electrons.
An oxidizing agent gains electrons.
A reducing agent loses electrons.

Question 15 of 61

What is the proper order of the divisions of the small intestine as food passes through the gastrointestinal tract?

Duodenum, jejunum, ileum
Ileum, jejunum, duodenum
Ileum, duodenum, jejunum
Duodenum, Ileum, jejunum

Question 16 of 61

Which of the following terms is used to describe muscular contractions that move food material through the digestive tract?

Homeostasis
Peristalsis
Metastasis
Ingestion

Question 17 of 61

During the process of oogenesis, primary oocytes produce ____.

Stem cells
Eggs
Sperm
Oogonia

Question 18 of 61

What is the function of the Golgi apparatus?

It prepares proteins and other large molecules for transport to other parts of the cell.
It contains the cell’s genetic material.
It helps maintain the cell’s shape and structural integrity.
It is responsible for cellular metabolism, producing the energy used by other organelles.

Question 19 of 61

Which of the following lists best illustrates the idea of increasing levels of complexity?

Organelles, cells, tissues, organs, systems
Cells, tissues, organelles, organs, systems
Tissues, cells, organs, organelles, systems
Organs, organelles, systems, cells, tissues

Question 20 of 61

Which of the following statements best defines an organelle?

Specialized structures within a cell
Layer of polysaccharides outside the plasma membrane of cells
Abnormal infectious proteins
Collection of tissues used to serve a specific function

Question 21 of 61

Which of the following is not provided as a result of the valid research and observations recorded by scientists?

The ability to prevent earthquakes and other natural disasters
A better understanding of the physical world
The ability to predict possible outcomes affected by actions
The creation of various substances and technologies that enhance our world

Question 22 of 61

How does water affect the temperature of a living thing?

Water does not affect temperature.
Water keeps temperature stable.
Water increases temperature.
Water decreases temperature.

Question 23 of 61

A scientist finds that the results of her experiment seem to contradict her hypothesis. What is the best course of action?

Publish the results anyway, acknowledging that her hypothesis seems to have been incorrect.
Keep trying the experiment until the results match her hypothesis.
None of the above; this cannot occur. The experimental results cannot contradict the hypothesis, by definition.
Publish the results, retroactively changing the hypothesis.

Question 24 of 61

What is the process called in which a substance changes from a gas to a liquid?

Condensation
Vaporization
Evaporation
Sublimation

Question 25 of 61

Scientists often form hypotheses based on particular observations. Which of the following is NOT true of a good hypothesis?

A good hypothesis is testable.
A good hypothesis predicts future events.
A good hypothesis is complex.
A good hypothesis is logical.

Question 26 of 61

A well-controlled experiment was conducted where researchers noted that a new antibiotic eliminated a bacterial sinus infection. Which of the following can be inferred from this result?

The medication killed the bacteria responsible for the sinus infection.
The medication alters the patient’s DNA to help them fight off an infection.
The medication helped eliminate the patient’s allergies.
The medication acted as an antihistamine to cure the patient’s runny nose.

Question 27 of 61

When does the nuclear division of somatic cells take place during cellular reproduction?

interphase
meiosis
mitosis
cytokinesis

Question 28 of 61

What of the following compounds is reduced in the following chemical reaction?

C6H12O6
H2
O2
CO2

Question 29 of 61

Which of the following hormones are secreted directly by the hypothalamus?

oxytocin
dopamine
melatonin
calcitonin

Question 30 of 61

A neuron consists of three main parts. These are ____.

Dendrites, axon, cell body
Effector, cell body, axon
Dendrites, axon, receptor
Synapse, axon, cell body

Question 31 of 61

Which of the following is not an example of a homeostatic mechanism?

Weight gain when consuming excess calories
Increasing heart rate when blood pressure is low
Shivering when the body temperature falls
Secreting insulin to decrease blood sugar concentration

Question 32 of 61

What is the term for the process by which unspecialized cells transform into more specialized cells?

Differentiation
Evolution
Mitosis
Synthesis

Question 33 of 61

Which of the following is true of skeletal muscle tissue?

Skeletal muscle tissue consists of striated, cylindrical fibers, each of which contains nuclei located towards the outer edges of the fiber.
Skeletal muscle tissue consists of tightly packed, cuboidal cells, each of which contains a single nucleus.
Skeletal muscle tissue consists of elongated, spindle-shaped cells, each of which contains a single nucleus.
Skeletal muscle tissue consists of crossstriated, quadrangular cells, each of which contains a single nucleus.

Question 34 of 61

Which of the following is considered an extensive property?

weight
density
conductivity
malleability

Question 35 of 61

Which of the following organ systems has the purpose of producing movement through contraction?

Muscular
Skeletal
Respiratory
Cardiovascular

Question 36 of 61

Homeostasis is defined as ____.

Tendency of the body to maintain a stable environment
Ability of human beings to keep body weight within normal limits
Ingestion of enough food to keep hunger pains from developing
Maintenance of a constant external temperature inside a room

Question 37 of 61

Which of the following steps comes first in a scientific investigation?

Analysis of results
Drawing conclusions
Formation of hypothesis
Performing the experiment

Question 38 of 61

What is the first line of defense against invading bacteria?

The skin
T-cells
Lymphocytes
Macrophages

Question 39 of 61

Which of the following statements describes the function of smooth muscle tissue?

It contracts to support the spinal column.
It contracts to assist the stomach in the mechanical breakdown of food.
It contracts to force air into and out of the lungs.
It contracts to force air into and out of the stomach.

Question 40 of 61

The pharynx is part of what body system?

respiratory
muscular
lymphatic
Circulatory

Question 41 of 61

Which class of hormones is most likely to be released after a serious injury?

Endorphins
Acetylcholine
Oxytocin
Luteinizing hormone

Question 42 of 61

What is the possibility that the offspring produced will have brown eyes?

The next two questions are based on the following Punnett square.
B = alleles for brown eyes; g = alleles for green eyes
B g
B BBBg
g Bggg

75%
25%
100%
50%

Question 43 of 61

Which of the following is NOT a function of the nervous system?

Regulating the body through hormonal production
Processing and integrating sensory input
Extracting information about the environment
Sending signals to the muscles to induce contraction

Question 44 of 61

Which of the following causes varicose veins to occur?

Atherosclerosis
Loss of skin turgor
Incompetent valves
Loss of blood vessel elasticity

Question 45 of 61

Which of the following occurs when a person is in a stressful condition?

Mobilization of glucose from the liver into the bloodstream
Uptake of glucose by the liver, muscles and adipose tissues
Dilation of blood vessels in the digestive system
Constriction of blood vessels in the skeletal muscles

Question 46 of 61

Hexane has which of the following types of chemical bonds?

single and double bonds
all single bonds
single and triple bonds
double and triple bonds

Question 47 of 61

What kind of bond connects sugar and phosphate in DNA?

ionic
hydrogen
overt
covalent

Question 48 of 61

What effect does a catalyst have on a chemical reaction?

It speeds up the reaction.
It prevents a reaction from taking place.
It slows down the reaction.
It makes a reaction go in reverse.

Question 49 of 61

A normal human sperm must contain ____.

A Y chromosome
An X chromosome
23 chromosomes

Question 50 of 61

Which of the following terms is used to describe muscular contractions that move food material through the digestive tract?

Peristalsis
Metastasis
Homeostasis
Ingestion

Question 51 of 61

Where are the vocal cords located?

epiglottis
trachea
bronchi
larynx

Question 52 of 61

Which of the following is considered an extensive property?

weight
density
conductivity
malleability

Question 53 of 61

Which of the following steps comes first in a scientific investigation?

Performing the experiment
Formation of hypothesis
Analysis of results
Drawing conclusions

Question 54 of 61

What is the name for a joint that can only move in two directions?

hinge
insertion
ball and socket
flange

Question 55 of 61

Examine the following reaction. Which of the answer choices is a possible set of products?
ABC —-> ____

A + BC
2AB + C
AB + CD
B + C

Question 56 of 61

The chemical equation below is unbalanced. When it is properly balanced, how many molecules of carbon dioxide (CO2) are produced for each molecule of propane (C3H8) in the reaction?

Three
Five
One Half
Two

Question 57 of 61

What is the possibility that the offspring produced will have brown eyes?

The next two questions are based on the following Punnett square.
B = alleles for brown eyes; g = alleles for green eyes
B g
B BBBg
g Bggg

100%
50%
75%
25%

Question 58 of 61

Which of the following statements is true regarding trophic levels?

Tertiary consumers acquire more energy content than secondary consumers.
Secondary consumers acquire more energy than primary consumers.
Tertiary consumers acquire less energy than primary consumers.
Producers acquire less energy than primary consumers.

Question 59 of 61

Where is the abdominopelvic cavity in relationship to the thoracic cavity?

Inferior
Dorsal
Superior

Question 60 of 61

Which of the following describes an experiment?

The final math grades for a group of students passing through each year of elementary school are examined.
The effects of a new drug are tested on a group of participants.
The health trends of smokers in a small random sample are examined.
Citizens in a local community are surveyed to determine concerns related to the next election.

Question 61 of 61

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