Ascientist at the polar ice cap was studying an ice sample from hundreds of meters below the surface. while examining the ice, the scientist found some cells from many years ago. using an electron microscope, the scientist identified these cell structures: a cytoskeleton, mitochondrion, nucleus, cell wall, and ribosomes. what kind of organism did the scientist find?

Which of the following conclusions can be drawn

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food