What is the function of the urethra?

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

What are characteristics of minerals? select 3 choices

Paleontologists have found plant fossils deep within the layers of the north polar region. these leaf fossils have been labeled as to the rock layers they were found in, with the lower numbers being layers close to the earth's surface and higher numbers representing deeper layers. according to the numbers of these four leaf fossils, what might you infer?