Two groups of students were tested to compare their speed working on math problems. each group was given the same problems. one group used calculators and the other group computed without calculators. manipulated variable: responding variable: controlled variable:

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

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.

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe