Mastering Bio Help plz?

Posted on 2017-04-27 18:33:00 in Biology by VANCIEN

1) How would hearing be affected by a punctured eardrum? 

a) Only low-pitched sound could be heard. 
b) Only high-pitched sound could be heard. 
C) Hearing loss would occur at all pitches. 
d) No noticeable impact to hearing would occur. 

2) How is a stem cell in an adult organism different from most of the other cells in the adult? 

a)Stem cells can divide to form one daughter cell that remains a stem cell and one that can differentiate into a particular, specialized type of cell. 

b)Stem cells contain all of the DNA present in the embryonic cells. 

C)Stem cells are differentiated, but other adult cells are not. 

d) Only stem cells can divide in adult organisms.

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