Answers: 2
Biology, 21.06.2019 16:30, monayemcnett11
25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?
Answers: 3
Biology, 22.06.2019 08:30, narwhalebearp5871i
Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass
Answers: 3
Biology, 22.06.2019 12:00, YoungKukie24
The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen
Answers: 2
What is the reason for each individual trait?...
Mathematics, 08.11.2020 23:10
Mathematics, 08.11.2020 23:10