What might happen to the numbers of prey if a population of predators grows? (site 2)

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?

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?