Astudent looks at a slice of tissue on an unlabeled microscope slide. ***unit 3 lesson 1 begins with this question. here are all the answers to this quick check. 1. d cell walls 2.b nerve cord 3.a all chordates share a common 4.b stable internal environment 5. c adapt to new living conditions

In 1992, hurricane andrew left a wake of destruction through florida. one victim of the storm was a reptile-breeding facility. over 900 burmese pythons were set free, and today thousands of pythons live in florida. these pythons are an invasive species, or a harmful species not native to the region. 1. what impacts do you think the burmese pythons might have on local ecosystems