BIOS 251 EXAM REVIEW
EXPERT REVIEWED EXAM Q&A GRADED A+
2026/2027 LATEST UPDATE
A feedback loop in which a system responds to a change by reversing
that change, or by decreasing the rate at which the change is
occurring. (Ex. thermoregulation) - ANS✔✔---Negative Feedback
Loop
Processes the signal, alerts the effector about the detected change, and
gives instructions - ANS✔✔---Control Center
An organ or cell that acts in response to a stimulus; handles the issue -
ANS✔✔---Effector
Divides the human body into equal left and right sections - ANS✔✔--
- Midsagittal Plane
Divides the human body in half, creating two sections; top and bottom
- ANS✔✔---Transverse or Horizontal Plane
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, Parallel plane next to the midsagittal plane - ANS✔✔---Parasaggittal
Plane
Divides a human body into anterior and posterior sections - ANS✔✔-
-- Frontal Plane or Coronal Plane
The study of human structure - ANS✔✔---Anatomy
The study of human function - ANS✔✔---Physiology
A tendency for organisms to maintain a balanced or constant internal
state -
ANS✔✔---Homeostasis
A state of balance - ANS✔✔---Equilibrium
Consequences of homeostatic imbalance - ANS✔✔---Illness or death
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EXPERT REVIEWED EXAM Q&A GRADED A+
2026/2027 LATEST UPDATE
A feedback loop in which a system responds to a change by reversing
that change, or by decreasing the rate at which the change is
occurring. (Ex. thermoregulation) - ANS✔✔---Negative Feedback
Loop
Processes the signal, alerts the effector about the detected change, and
gives instructions - ANS✔✔---Control Center
An organ or cell that acts in response to a stimulus; handles the issue -
ANS✔✔---Effector
Divides the human body into equal left and right sections - ANS✔✔--
- Midsagittal Plane
Divides the human body in half, creating two sections; top and bottom
- ANS✔✔---Transverse or Horizontal Plane
1|Page
, Parallel plane next to the midsagittal plane - ANS✔✔---Parasaggittal
Plane
Divides a human body into anterior and posterior sections - ANS✔✔-
-- Frontal Plane or Coronal Plane
The study of human structure - ANS✔✔---Anatomy
The study of human function - ANS✔✔---Physiology
A tendency for organisms to maintain a balanced or constant internal
state -
ANS✔✔---Homeostasis
A state of balance - ANS✔✔---Equilibrium
Consequences of homeostatic imbalance - ANS✔✔---Illness or death
2|Page
