jenkinjack7654
02.11.2020 •
Biology
Question 20 of 32
Which of the following is an example of a biological system?
A. A science fair project modeling the process of breathing in the
human body
B. The heart, lungs, and blood vessels working together to carry
oxygen throughout the body
C. The Internet
D. A biology textbook
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Ответ:
The answer is 3^3 x 3^4