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
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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
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