Aphids (an insect) are a common herbivore of poppies. Design an experiment that tests the hypothesis that insect herbivory is "worse" for plants that are "stressed." Be sure to define (describe how you would quantify) "worse" and "stressed" in your response. In your experiment also be sure to clearly identify hypothesis, prediction, null hypothesis, variables(independent, dependent, controlled)

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

What is the name for a substance formed in a chemical reaction

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen