What is a complete protein?
a: it has all twenty of the essential amino acids.
b: it has all eleven of the amino acids produced in the body.
c: it has all nine of the essential amino acids.
d: it has at least three of the essential amino acids.

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?

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

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the