How many different groups sought to
converge on cornwallis at yorktown?
a. one; just washington and his continental army
b. two; washington's continental army and de grasse's french
second fleet
c. three; washington, rochambeau, and de grasse

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes