Blood received into the heart from the systemic circuit is

1- high in oxygen and low in carbon dioxide.

2- low in oxygen and low in carbon dioxide.

3- high in oxygen and high in carbon dioxide.

4- low in oxygen and high in carbon dioxide.

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

In one or two well-crafted paragraphs in your laboratory journal, summarize the process in which normal cells become cancer cells. your paragraph(s) must include each of the terms listed below. underline each term in your writing:

During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane