2. In a study of eastern red-backed salamanders, a biologist randomly placed seven 1.0m by 1.0m quadrats in a field that measured 100m by 100m. Estimate the population density and size if the biologist found 0, 1, 1, 2, 0, 1, and 3 salamanders in the seven quadrats.

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl