ATI TEAS Version 7 Science Practice Test 2026
Comprehensive Review with Questions, Verified
Answers, and Rationales
Which blood group is the universal donor? Type O
A universal blood donor has type O, universal aceptor is type AB.
Blood oxygen levels are most likely low when blood fills the right atrium
_________.
An intracellular chemical signal can be produced in the To another part of the same cell
cell membrane. Once it is produced, where does it go?
After food has been masticated in the oral cavity, where pharynx
does it go next?
The diffusion of nutrients through the walls of the small intestine
digestive system is critical to homeostasis in the body.
Where does the majority of this diffusion take place in the
digestive system?
As soon as an invader, known as a(n) _____, enters the pathogen
body, the body begins to fight.
Where is skeletal muscle found? attached to bones
If a person smells something sweet, what form of sensory
information is this initially perceived as in the nervous
system?
While hiking, a person is startled after encountering a sympathetic
bear. Her palms get sweaty and her heart starts racing.
Which part of her nervous system was directly
stimulated?
Which of the following types of tissues include cells of connective tissue
the immune system and of the blood?
Which best describes homeostasis? A relatively constant environment within the body
Fertilization (the fusing of one sperm and an ovum) zygote
results in a(n) ___ _.