Skin is the largest organ in your body. As a part of the excretory system it excretes waste through in the skin. A. Lungs b. An anus c. Sweat glands d. Lymph nodes

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.

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae

A(n) is a molecule influences the way that a molecule reacts.