Which tool should you use to break up hard soil and to pry rocks apart?
1.altimeter
2.sieve
3.hand lens
4.geological pick

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 of the following human activities resulted in the growth of the north american deer population?

Sharks depend on production for survival