If we find that some schools direct females away from science and math courses, we have evidence of

Table 21-1The following table shows the distribution of income in Leavleton. ​ Group Annual Family Income Bottom Quartile (25%) $24,000 and below Third Quartile $24,000 to $52,999 Second Quartile $53,000 to $80,999 Top Quartile $81,000 and above ​ ​ ​Refer to Table 21-1. If the poverty line were $34,257, what would be the poverty rate?

Scenario 20-5 Zahra works part-time at a grocery store after school. Zahra has worked at the grocery store for two years but still hasn’t received a wage increase, even though newer employees have received raises. Zahra has threatened her employer with a lawsuit if she doesn’t get a raise in the next few weeks. Zahra believes she is a victim of labor-market discrimination.Refer to Scenario 20-5. Which of the following statements would strengthen Zahra’s case against her employer?

When Republicans and Democrats offer similar platforms in an election campaign, a likely explanation is the

Scenario 20-5 Zahra works part-time at a grocery store after school. Zahra has worked at the grocery store for two years but still hasn’t received a wage increase, even though newer employees have received raises. Zahra has threatened her employer with a lawsuit if she doesn’t get a raise in the next few weeks. Zahra believes she is a victim of labor-market discrimination.Refer to Scenario 20-5. Why might an economist be skeptical of Zahra’s discrimination complaint?

Explain why light color affects plant growth.

While exploring bacterial samples from a yogurt culture, you observe one of the cells under a high-powered microscope. You notice the following: The cell is very small and simple in structure. It has a cell wall and a cell membrane. There is no visible nucleus — the DNA is floating freely in the cytoplasm. The cell lacks membrane-bound organelles. Based on these observations, is this a prokaryotic or eukaryotic cell?

What is the saddle’s primary movement?

Identify which phase of mitosis this cell is in and explain your reasoning.  

Which of the following are reactants of cellular respiration? Select all that apply.