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BIO 168 Final Exam 2026/2027 Update – Complete Practice Questions with Correct Answers

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This document contains a comprehensive set of practice questions and correct answers for the BIO 168 Final Exam (2026/2027 update). It covers key topics such as levels of biological organization, tissue and organ classification, and mechanisms of homeostasis including negative and positive feedback systems. The material is structured in a clear Q&A format to support efficient exam preparation and concept review. It is suitable for students preparing for cumulative final assessments in anatomy and physiology.

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3/3/26, 8:05
PM


BIO 168 FINAL EXAM WITH GOOD QUESTIONS AND CORRECT
ANSWERS 2026/2027 UPDATE.
List the levels of organization in order 1. Atoms and molecules

from simplest to most complex. 2. Macromolecule


3. Organelle


4. Cell


5.Tissue


6. Organ


7. Organ System

8.Organism



A/an___is a collection of cells with Tissue

similar structure

and function.


A/an__is a collection of tissues Organ

working together to

do a function.


A/an___is a collection of organs Organ system

coordinating to

achieve common functions.


A/an__is the basic unit of life. cell


A/an__is a small structure found inside organelle

cells that do

specific functions.


Name the level of organization: Tooth Organ

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What two processes regulate 1. negative feedback

homeostasis? 2. positive feedback


To keep body temperature at its set Effector

point, sweat glands are stimulated

to secrete sweat when the body

temperature rises. The sweat gland

secreting sweat is acting as what

component of a homeostatic

mechanism?


When blood calcium goes below chemoreceptors on the parathyroid gland

normal levels,

chemoreceptors on the parathyroid

gland signal the release of the

parathyroid hormone from the

parathyroid gland. This hormone

works with calcitriol to cause the

release of calcium from the bones

into the

blood. What structure is the receptor?


When blood calcium goes below parathyroid gland

normal levels,

chemoreceptors on the parathyroid

gland signal the release of the

parathyroid hormone from the

parathyroid gland. This hormone

works with calcitriol to cause the

https://quizlet.com/1121143942/bio-168-final-exam-study-guide- 2/
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release of calcium from the bones

into the

blood. What structure is the control

center?


When body temperature drops below hypothalamus

normal, the

hypothalamus in the brain signals the

smooth muscle in the peripheral

blood vessels to constrict so

blood is

directed deeper into the body and

towards the trunk. What structure

is the control center?


When body temperature drops below smooth muscle in the peripheral blood vessels

normal, the

hypothalamus in the brain signals the

smooth muscle in the peripheral

blood vessels to constrict so

blood is

directed deeper into the body and

towards the trunk. What structure

is the effector?


The normal levels of glucose in your 70-110 mg/dL

blood range from 70-110 mg/dL.

When you eat, the carbohydrates in

your food are converted into

glucose and enter the
https://quizlet.com/1121143942/bio-168-final-exam-study-guide- 3/
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