What does an urn-shaped age pyramid represent?
A. a stable population growth
B. a low birth rate
C. a low death rate
D. a growing population

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?

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.