Some scientists have shown that peppermint odor increases people’s sharpness, especially when the solve math problems. which best describes how this could be a valid scientific claim?
a. if it is tested in a controlled setting with repeated results.
b. if the test is published on wikipedia.
c. if the scientists was previously peer reviewed.
d. if the math problems are easy problems.

Now it's your turn to investigate human impact around the world. grab your virtual lab coat and put on your environmental science hat. you will be taking a trip around the globe to explore three locations. at each location, you will investigate the cause and effect relationships of deforestation, desertification, and urbanization. you will also gather evidence of how these factors have impacted the environment over time

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation

Which of the following statements about protists are true? a.they are typically found in moist environments. b.they are all unicellular. c.they have a nucleus. d.they are all multicellular.