Unit Test — Unit test Answers

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1
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probably

d
dementia
m
muscular dystrophy
c
coronary heart disease
k
kidney disease
2
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A gland is a group of cells or an organ that

A
connects body structures.
B
secretes hormones.
C
protects organs.
D
separates bones.
3

most likely

t
the pelvic cavity.
t
the dorsal cavity.
t
the ventral cavity.
t
the thoracic cavity.
4

Unlike healthy human cells, human cancer cells

A
undergo mitosis.
B
have mitochondria.
C
grow uncontrollably.
D
make proteins.
5

Unlike healthy human cells, human cancer cells

A
undergo mitosis.
B
have mitochondria.
C
grow uncontrollably.
D
make proteins.
6

Which list demonstrates the levels of organization in the body from smallest to largest?

t
tissues, cells, organs, organ systems
o
organs, organ systems, cells, tissues
o
organ systems, tissues, cells, organs
c
cells, tissues, organs, organ systems
8

The lungs are major organs of which organ systems?

A
the respiratory and endocrine systems
B
the digestive and cardiovascular systems
C
the excretory and respiratory systems
D
the cardiovascular and immune systems
12

Jin stepped on a nail and cut his foot. A signal was sent to his brain. In response, the blood on his foot started to clot. In this example of a control mechanism, what is the effector?

A
Jin stepping on a nail.
B
Jin cutting his foot.
C
Jin’s body signaling the brain.
D
Jin’s blood starting to clot.
13

Simon received an organ transplant. The donated organ came from another living person. Which disease does Simon probably have?

A
dementia
B
muscular dystrophy
C
coronary heart disease
D
kidney disease
14

An individual’s blood pH level is 7.3. How will her body most likely respond?

A
Her pancreas will release hormones to normalize the pH level.
B
Her brain will be stimulated to adapt to an acidic environment.
C
Her blood vessels will get larger to better move the blood around.
D
Her kidneys will release substances to neutralize the blood.

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