Biology encompasses all levels of biological organization, but scientists can specialize in studying a
certain level. Which specific level(s) might a scientist might focus on if investigating genetic links to
certain types of cancer?

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

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.

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?