Answer:
A. Superior vena cava
B. Right pulmonary veins
C. Can't see where's that pointing at
D. Right atrium
E. Tricuspid valve
F. Right ventricle
G. Inferior vena cava
H. Looks like a muscle but I don't know the specific name
I. Left ventricle
J. Mitral/bicuspid valve
K. Aortic valve
L. Left atrium
M. I don't know
N. Left pulmonary veins
O. Aorta
The body's first line of defense against pathogens are mucous membranes, as they prevent bacteria from entering the body. Hope this helps!
Answer:
Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Explanation:
http://www.answers.com/Q/Why_is_carbon-14_not_used_to_date_the_age_of_the_earth?#slide=1
This might help you, good luck!!
