Levels of organization

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
o g a n i
An individual living thing.
2.
e n d r i n
The secretion of an ___ gland that is transmitted by the blood to the tissue on which it has
3.
r e p r d u v e
4.
s p e i a i a i o
The structural adaptation of some body part for a particular function
5.
d g e s t e
Any substance that promotes ___
6.
c l l
Tiniest unit of living things
7.
m u s c l
Of or relating to or consisting of muscle
8.
t i s s
Part of an organism consisting of an aggregate of cells having a similar structure and function
9.
s s e m
Instrumentality that combines interrelated interacting artifacts designed to work as a coherent
10.
o g a
A body part made of tissues working together to perform a function.
11.
c d o v a s c l a
Of or pertaining to or involving the heart and blood vessels
12.
m u c e l u l a r
Consisting of many cells
13.
n r o u s
Causing or fraught with or showing anxiety
14.
u n i c l u a
Having or consisting of a single cell
15.
c i r u a r y
Of or relating to ___
16.
d i f e e n i t e
To be a distinctive feature, attribute, or trait
17.
r e s r a t r
Pertaining to ___
18.
i m u n
A person who is ___ to a particular infection
19.
e r t o r y
Of or relating to the process of ___
20.
o a n s s t m