Which of these is a segment of dna that contains information necessary to produce a protein? a. a base b. a gene c. a codon d. a chromosome

Scientific method and data analysisa biology student wanted to determine if there is a relationship between resting heart rate and bodyheight. she gathered information from 12 classmates and constructed the table below. resting heart rate (beats per minute)student height (cm)155. 156156165180180190194195

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

What happens when the cell copies its chromosomes