Both Aristotle and Linnaeus classified all living things as plants or animals. Today, scientists use a classification system that involves three domains, six kingdoms, and millions of species. Write 5 sentences explaining why this has changed so much ? HELP ME PLEASE!! Thanks In advance

Calvin ate a candy bar, which caused his body's blood glucose levels to become unbalanced. his body responded by initiating a feedback mechanism to return his body to homeostasis. place the steps of this feedback mechanism in order, starting with the blood glucose imbalance that occurred after calvin consumed the candy bar. a) calvin's blood glucose levels decreased. b) calvin's pancreas stopped secreting insulin. c) calvin's body cells started to take up glucose and store it as glycogen. d) calvin's blood glucose levels increased. e) calvin's pancreas started secreting insulin.

What goes in and out of a cell respiration?

How do the sperm cells get from the stigma to the ovules?