UPDATED ATI TEAS 7 SCIENCE QUESTIONS
AND ANSWERS
1. Which of the following structures in the male reproductive system secretes a fluid that
nourishes and protects sperm?
A) Urethra
B) Prostate gland
C) Vas deferens
D) Epididymis - ANSWER-B) Prostate gland
2. Which of the following parts of the central nervous system releases chemicals that
regulate the pituitary gland?
A) Cerebellum
B) Hypothalamus
C) Spinal cord
D) Thalamus - ANSWER-B) Hypothalamus
3. Which of the following body systems is the primary system involved in preventing an
infection when a cut in the skin allows bacteria to enter the body ?
A) The immune system
B) The endocrine system
C) The excretory system
D) The circulatory system - ANSWER-A) The immune system
4. Which of the following skin layers contains dead cells?
A) Papillary layer
B) Stratum basale
C) Stratum corneum
D) Reticular layer - ANSWER-C) Stratum corneum
5. Which of the following statements describes how bile salts aid during digestion?
A) Decrease the size of starches to aid in digestion
B) Increase the size of fat droplets to aid in digestion
C) Increase the size of starches to aid in digestion
D) Decrease the size of fat droplets to aid in digestion - ANSWER-D) Decrease the size
of fat droplets to aid in digestion
6. When experimental results seem to only partly support a hypothesis, a researcher
should consider which of the following?
A) Formulating a scientific law
B) Manipulating the data
C) Exploring alternative explanations
, D) Accounting for other researchers biases - ANSWER-D) Accounting for other
researchers biases
7. Which of the following stem cells can differentiate into the largest number of different
cell types?
A) Somatic
B) Unipotent
C) Oligopotent
D) Pluripotent - ANSWER-D) Pluripotent
8. Scientists rely on which of the following to provide critical feedback when revising
scientific explanation?
A) Peer review
B) Null hypothesis
C) Dogma
D)Opinion - ANSWER-A) Peer review
9. Which of the following organs releases bicarbonate as response to the release of
secretin by
the duodenum?
A) Gallbladder
B) Spleen
C) Pancreas
D) Liver - ANSWER-C) Pancreas
10. emphysema caused by damage to alveoli from toxins and pollutants is likely to
result in the
body having difficulty performing which of the following actions ?
A) Releasing histamine and acetylcholine
B) Producing enzymes
C) Absorbing food
D) Exchanging oxygen and carbon dioxide - ANSWER-D) Exchanging oxygen and
carbon dioxide
11. Which of the following properties of water explains its solvent abilities for certain
substances?
A) High surface tension
B) Kinetic energy of liquid water molecules
C) High specific heat
D) Polarity of water molecules - ANSWER-D) Polarity of water molecules
12. Which of the following pathways best represents the expected flow of blood from the
human heart to an organ?
A) Blood pumped from the heart first enters arterioles that then merge to form arteries
that deliver blood to the organ
AND ANSWERS
1. Which of the following structures in the male reproductive system secretes a fluid that
nourishes and protects sperm?
A) Urethra
B) Prostate gland
C) Vas deferens
D) Epididymis - ANSWER-B) Prostate gland
2. Which of the following parts of the central nervous system releases chemicals that
regulate the pituitary gland?
A) Cerebellum
B) Hypothalamus
C) Spinal cord
D) Thalamus - ANSWER-B) Hypothalamus
3. Which of the following body systems is the primary system involved in preventing an
infection when a cut in the skin allows bacteria to enter the body ?
A) The immune system
B) The endocrine system
C) The excretory system
D) The circulatory system - ANSWER-A) The immune system
4. Which of the following skin layers contains dead cells?
A) Papillary layer
B) Stratum basale
C) Stratum corneum
D) Reticular layer - ANSWER-C) Stratum corneum
5. Which of the following statements describes how bile salts aid during digestion?
A) Decrease the size of starches to aid in digestion
B) Increase the size of fat droplets to aid in digestion
C) Increase the size of starches to aid in digestion
D) Decrease the size of fat droplets to aid in digestion - ANSWER-D) Decrease the size
of fat droplets to aid in digestion
6. When experimental results seem to only partly support a hypothesis, a researcher
should consider which of the following?
A) Formulating a scientific law
B) Manipulating the data
C) Exploring alternative explanations
, D) Accounting for other researchers biases - ANSWER-D) Accounting for other
researchers biases
7. Which of the following stem cells can differentiate into the largest number of different
cell types?
A) Somatic
B) Unipotent
C) Oligopotent
D) Pluripotent - ANSWER-D) Pluripotent
8. Scientists rely on which of the following to provide critical feedback when revising
scientific explanation?
A) Peer review
B) Null hypothesis
C) Dogma
D)Opinion - ANSWER-A) Peer review
9. Which of the following organs releases bicarbonate as response to the release of
secretin by
the duodenum?
A) Gallbladder
B) Spleen
C) Pancreas
D) Liver - ANSWER-C) Pancreas
10. emphysema caused by damage to alveoli from toxins and pollutants is likely to
result in the
body having difficulty performing which of the following actions ?
A) Releasing histamine and acetylcholine
B) Producing enzymes
C) Absorbing food
D) Exchanging oxygen and carbon dioxide - ANSWER-D) Exchanging oxygen and
carbon dioxide
11. Which of the following properties of water explains its solvent abilities for certain
substances?
A) High surface tension
B) Kinetic energy of liquid water molecules
C) High specific heat
D) Polarity of water molecules - ANSWER-D) Polarity of water molecules
12. Which of the following pathways best represents the expected flow of blood from the
human heart to an organ?
A) Blood pumped from the heart first enters arterioles that then merge to form arteries
that deliver blood to the organ
