Which of the following do the food web and food chain represent in an ecosystem?
a. the movement of energy
b. the number of animals
c. the movement of animals
d. the number of consumers

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

Anita thinks that she has heterozygous alleles for red hair.if she is correct, which of these diagrams best illustrates anitas alleles pf red hair

Nucleic acid certain protein cell membranes certain carbohydrates