This type of fossil forms from a mold. Small particles of mud, sand, and/or minerals becomes packed into the open space of the mold in the shape of a
turtle shell and hardens. The result is a fossil that has the same exact shape
as the original turtle shell.

Common commercial benefits of microorganisms include synthesis ofa. insulin.b. antibiotics.c. aspirin.d. antibiotics and aspirin.e. antibiotics and insulin.

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.

The response is the basis for vaccination. primary secondary tertiary none of the above