Which of the following statements is a scientific hypothesis(that is, it makes a testable predictions). Choose only one A. Even though no one else can see him, the ghost of my dog lives in my backyard.
B. The Atkins diet helps people lose more weight and keep it off than weight watchers do.
C. People born under the sun sign Aquarius are kinder and cuter than those born under Scorpio.
D. It is unethical to text while driving .
S. None of the above

Are substances released into the environment that in excess amounts cause damage

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables