What percent of all species that ever existed do biologists estimate are now extinct?

A) 25%

C) 50%

D) 75%

B) 5%

E) 99%

A dandelion population grows at a rate of 8 percent per year. How many years will it take for the population to double?

Describe the factors that led to dramatic population growth between 1500-1700

Draw a structure chart for the following module: Input a number of km, output the equivalent number of miles

4. Have you ever encountered people who look down on people with mental illness, or think that the stigma is justified? What do you think might change their perceptions? If you have never encountered such people, why do you think that is?

What factors have tended to untie the Arab nations since independence?

Which Number does not fit in the Series; 1, 2, 3, 5, 7, 9, 11, 13, 17, 19, __ A) 15 B) 9 C) 4 D) 19 E) 13 F) 2 G) 17 H) 11

A drug dealer was using a public telephone booth to make a drug transaction. The police used listening devices to hear the suspectś conversation. Would the officerś evidence be admissible in court?

Vitamins are macronutrients. (T/F)

What type of wave does the snake's body make as the snake moves forward?

A majority 68% of licensed teen drivers who used drugs report that they also