What always affects measurement error in an experiment?
a. investigator bias
b. variability in nature
c. instrument precision
d. misreading the instrument

Which of the following birds remained ancient looking in the miocene epoch? a. crows b. owls c. grouses d. none of the above

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

~fourth largest plate ~includes parts of the indian and atlantic oceans ~subducts below the eurasian plate on the west side ~ the arabian and somali plates form boundaries with it what is the name of the tectonic plate described above? a) african plate b) eurasian plate c) north american plate d) indo- australian plate