Contractile vacoules maintain water balance by pumping excess water out of some single-celled pond organisms. in the multicellular human the kidney is chiefly involved in maintaining water balance. these facts best illustrate that

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

Matched chromosomes carrying information about the same characteristics in the organism are called