Certain flowers will open for twelve hours and then close. Which stimulus do the flowers respond to when they open and then when they close for that time period? a. light levels

b. moon phases

c. seasonal temperatures

d. carbon dioxide levels

Name two things dr. king did to make america aware of the discrimination of african americans

The development of simple stone tools by early hominids led to the ability to procure meat more efficiently. this in turn led to the change in diet that included larger amounts of protein. many scholars believe that this shift in diet was a significant part of how our ancient ancestors adapted so quickly to a varied set of environments, and thus were able to begin cultural development. this demonstrates the intimate connection between

Which of the following best describes the reason the state department is interested in foreign exchange programs?