All of the following would be useful in trying to obtain procedural information to replicate an experiment previously published except for a. a published scientific journal. b. a peer-reviewed article. c. a dictionary. d. a lab journal used in the original experiment.

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food