What are the similarities between cardiovascular and respiratory systems? Both systems need a healthy oxygen supply to sustain human life. Both systems use high amounts of carbon dioxide in the blood stream. Both systems use circulation as the primary source of transporting blood throughout the body.

a. suckling by young

b. hypothalamus

c. dopamine

d. trh

e. anterior pituitary

f. mammary glands

g. milk production

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the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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