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ATI TEAS Version 7 Practice Test –
Science Exam Review Guide 2026 with
Approved Detailed Answers
Which blood group is the universal donor?
- ............ANSWER..........Type O
A universal blood donor has type O, universal aceptor is type AB.
Blood oxygen levels are most likely low when blood _________.
- ............ANSWER..........fills the right atrium
An intracellular chemical signal can be produced in the cell membrane.
Once it is produced, where does it go?
- ............ANSWER..........To another part of the same cell
After food has been masticated in the oral cavity, where does it go next? -
............ANSWER..........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?
- ............ANSWER..........small intestine
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As soon as an invader, known as a(n) _____, enters the body, the body
begins to fight.
- ............ANSWER..........pathogen
Where is skeletal muscle found?
- ............ANSWER..........attached to bones
If a person smells something sweet, what form of information is this
initially perceived as in the nervous system?
- ............ANSWER..........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?
- ............ANSWER..........sympathetic
Which of the following types of tissues include cells of the immune
system and of the blood?
- ............ANSWER..........connective tissue
Which best describes homeostasis?
- ............ANSWER..........A relatively constant environment within the
body
Fertilization (the fusing of one sperm and an ovum) results in a(n)
_________. - ............ANSWER..........zygote
ATI TEAS Version 7 Practice Test –
Science Exam Review Guide 2026 with
Approved Detailed Answers
Which blood group is the universal donor?
- ............ANSWER..........Type O
A universal blood donor has type O, universal aceptor is type AB.
Blood oxygen levels are most likely low when blood _________.
- ............ANSWER..........fills the right atrium
An intracellular chemical signal can be produced in the cell membrane.
Once it is produced, where does it go?
- ............ANSWER..........To another part of the same cell
After food has been masticated in the oral cavity, where does it go next? -
............ANSWER..........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?
- ............ANSWER..........small intestine
, 2/8
As soon as an invader, known as a(n) _____, enters the body, the body
begins to fight.
- ............ANSWER..........pathogen
Where is skeletal muscle found?
- ............ANSWER..........attached to bones
If a person smells something sweet, what form of information is this
initially perceived as in the nervous system?
- ............ANSWER..........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?
- ............ANSWER..........sympathetic
Which of the following types of tissues include cells of the immune
system and of the blood?
- ............ANSWER..........connective tissue
Which best describes homeostasis?
- ............ANSWER..........A relatively constant environment within the
body
Fertilization (the fusing of one sperm and an ovum) results in a(n)
_________. - ............ANSWER..........zygote
