15. What are three methods or types of evidence used by scientists to determine when things happened?

Explain why prokaryotes are considered simpler in their organization than eukaryotes

Two ways that the members of the two domains of prokaryotes differ are in the what?

Why is stem cell research gaining importance?

In grammatically correct sentences trace the path of reactants for photosynthesis as they enter the leaf

A postbirth complete blood count (cbc) has noted an elevated white blood cell (wbc) count of 22,000/mm3. which rationale is accurate regarding the elevated wbc count?

Why do scientist publish their work

In pea plants, the allele for purple flowers (p) is dominant to the allele for white flowers (p). in a cross between a purple-flowered plant and a white-flowered plant, all 73 of the offspring plants had purple flowers.

1. The first choice on a dichotomous key is: "1A. Are wings covered by an exoskeleton? vs. 1B. Are wings not covered by an exoskeleton?" Which organism is separated from the others by this question?

b. Explaining A friend claims that pea plant grow faster than corn plants. Could you investigate this idea through scientific inquiry? Explain.

Why is a disease like osteoarthritis not considered an infectious disease?