Scientists worldwide have agreed to use the metric system to make communication easier and to reduce the chance of errors in correspondence.
a. true
b. false

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .