Which of the following led to the discovery of cells? Electricity
Microscopes
Calculators
Computers

What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

What organs comprise the respiratory system of a bird