1. The heart pumps blood that carries oxygen and nutrients to the different parts of
the body. To which organ systern does the heart belong?
A circulatory
C.excretory
B. digestive
D.reproductive
e Cancer starts from cells that start to grow uncontrollably fast. They destroy issues
and organs. What does this say about the effects of diseased calls on the higher
levels of organization in an organism?
A Diseased cells do not affect the other parts of an organism
B. Cancer involves only certain kinds of cells and does not affect any other kind of
cell
c. Diseased cells affect only the next bigher levels of organization that they make
up - the tissues
D. Diseased cells damage the higher levels of organization they make up: tissues
organs, organ systems, and eventually, the whole organism.
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Answer:
1. circulatory system
The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body.
2. D
Answer:
1. A. circulatory
2. D.Diseased cells damage the higher levels of organization they make up: tissues
Diseased cells damage the higher levels of organization they make up: tissuesorgans, organ systems, and eventually, the whole organism.