Photosynthesis and respiration are supported by the recycling of and a. nitrogen, oxygenb. water, nitrogenc. carbon, oxygend. oxygen, nitrogen

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

In the practice of science, this type of reasoning is used to develop explanations.

Prokaryotic and eukaryotic cells are different in many ways other than the presence or absence of a nucleus. if both archaebacteria and eubacteria are prokaryotic cells, then why are archaebacteria more closely related to eukaryotic cells than they are to eubacteria?