How does the excretory (urinary) system help the body maintain balance (homeostasis)? A. It produces white blood cells to protect the body from infection.

B. It regulates metabolism for digestion by secreting hormones.

C. It removes waste from the bloodstream through kidneys.

The instructions for making proteins come originally from

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Iwanna go do something with my ideas? ?