ATI TEAS Test of Essential
Academic Skills Practice Test #1
Science Section Actual Exam
2026/2027 Complete Questions &
Detailed Answers - Pass
Guaranteed - A+ Graded
Human Anatomy & Physiology (Body Systems & Functions) – 25 questions
Q1: Which of the following lists the levels of structural organization in the human body in
the correct order, from the simplest to the most complex?
A. Cellular, Tissue, Organ, Organ System, Organism
B. Tissue, Cellular, Organ, Organism, Organ System
C. Organism, Organ System, Organ, Tissue, Cellular
D. Cellular, Organ, Tissue, Organ System, Organism
Correct Answer: A
Rationale: The best answer is this sequence because it correctly follows the biological
hierarchy where atoms form molecules, which form cells; cells group together to form
tissues; tissues combine to form organs; organs work together in organ systems; and
organ systems make up the organism.
Q2: If a patient suffers a burn that damages the epidermis and the upper layer of the
dermis, this injury is classified as which type of burn?
A. First-degree burn
B. Second-degree burn
C. Third-degree burn
D. Fourth-degree burn
Correct Answer: B
Rationale: This choice is correct because second-degree burns involve the epidermis
and part of the dermis, often presenting with blistering and pain. First-degree burns only
affect the epidermis, while third-degree burns extend through the dermis and damage
deeper tissues.
, Q3: Which of the following glands is primarily responsible for secreting sebum, an oily
substance that helps lubricate the skin and hair?
A. Eccrine glands
B. Apocrine glands
C. Sebaceous glands
D. Endocrine glands
Correct Answer: C
Rationale: The best answer is sebaceous glands because they are connected to hair
follicles and produce sebum to keep the skin and hair moisturized. Eccrine glands
produce sweat for thermoregulation, and apocrine glands produce a thicker secretion
often associated with body odor.
Q4: In the process of bone remodeling, which type of cell is primarily responsible for
breaking down bone tissue to release minerals into the bloodstream?
A. Osteoblasts
B. Osteocytes
C. Osteoclasts
D. Chondrocytes
Correct Answer: C
Rationale: This aligns with the function of osteoclasts because they secrete acids and
enzymes that dissolve the bone matrix, allowing for the release of calcium and
phosphorus. Osteoblasts are responsible for building new bone, while osteocytes are
mature bone cells that maintain the matrix.
Q5: The knee and elbow are examples of which type of joint, characterized by the
presence of a fluid-filled cavity and freedom of movement?
A. Fibrous joint
B. Cartilaginous joint
C. Synovial joint
D. Suture joint
Correct Answer: C
Rationale: This choice is correct because synovial joints are the most mobile type of
joint in the body, characterized by a synovial cavity filled with fluid that lubricates the
articulating bones. Fibrous and cartilaginous joints allow little to no movement.
Q6: Which of the following characteristics distinguishes cardiac muscle tissue from
skeletal muscle tissue?
A. Cardiac muscle is voluntary, while skeletal muscle is involuntary.
B. Cardiac muscle is striated, while skeletal muscle is smooth.
C. Cardiac muscle has intercalated discs, while skeletal muscle does not.
D. Cardiac muscle is multinucleated, while skeletal muscle has a single nucleus.
Academic Skills Practice Test #1
Science Section Actual Exam
2026/2027 Complete Questions &
Detailed Answers - Pass
Guaranteed - A+ Graded
Human Anatomy & Physiology (Body Systems & Functions) – 25 questions
Q1: Which of the following lists the levels of structural organization in the human body in
the correct order, from the simplest to the most complex?
A. Cellular, Tissue, Organ, Organ System, Organism
B. Tissue, Cellular, Organ, Organism, Organ System
C. Organism, Organ System, Organ, Tissue, Cellular
D. Cellular, Organ, Tissue, Organ System, Organism
Correct Answer: A
Rationale: The best answer is this sequence because it correctly follows the biological
hierarchy where atoms form molecules, which form cells; cells group together to form
tissues; tissues combine to form organs; organs work together in organ systems; and
organ systems make up the organism.
Q2: If a patient suffers a burn that damages the epidermis and the upper layer of the
dermis, this injury is classified as which type of burn?
A. First-degree burn
B. Second-degree burn
C. Third-degree burn
D. Fourth-degree burn
Correct Answer: B
Rationale: This choice is correct because second-degree burns involve the epidermis
and part of the dermis, often presenting with blistering and pain. First-degree burns only
affect the epidermis, while third-degree burns extend through the dermis and damage
deeper tissues.
, Q3: Which of the following glands is primarily responsible for secreting sebum, an oily
substance that helps lubricate the skin and hair?
A. Eccrine glands
B. Apocrine glands
C. Sebaceous glands
D. Endocrine glands
Correct Answer: C
Rationale: The best answer is sebaceous glands because they are connected to hair
follicles and produce sebum to keep the skin and hair moisturized. Eccrine glands
produce sweat for thermoregulation, and apocrine glands produce a thicker secretion
often associated with body odor.
Q4: In the process of bone remodeling, which type of cell is primarily responsible for
breaking down bone tissue to release minerals into the bloodstream?
A. Osteoblasts
B. Osteocytes
C. Osteoclasts
D. Chondrocytes
Correct Answer: C
Rationale: This aligns with the function of osteoclasts because they secrete acids and
enzymes that dissolve the bone matrix, allowing for the release of calcium and
phosphorus. Osteoblasts are responsible for building new bone, while osteocytes are
mature bone cells that maintain the matrix.
Q5: The knee and elbow are examples of which type of joint, characterized by the
presence of a fluid-filled cavity and freedom of movement?
A. Fibrous joint
B. Cartilaginous joint
C. Synovial joint
D. Suture joint
Correct Answer: C
Rationale: This choice is correct because synovial joints are the most mobile type of
joint in the body, characterized by a synovial cavity filled with fluid that lubricates the
articulating bones. Fibrous and cartilaginous joints allow little to no movement.
Q6: Which of the following characteristics distinguishes cardiac muscle tissue from
skeletal muscle tissue?
A. Cardiac muscle is voluntary, while skeletal muscle is involuntary.
B. Cardiac muscle is striated, while skeletal muscle is smooth.
C. Cardiac muscle has intercalated discs, while skeletal muscle does not.
D. Cardiac muscle is multinucleated, while skeletal muscle has a single nucleus.
