Fats and Proteins can be used as a supplement for energy if sugar is not available.
Hope I helped :) <span />
B. Segregation.
I have the same question and answered it and this is what it told me. I think it should be right.
Answer:
El aparato circulatorio unidireccional transporta sangre a todas las partes del cuerpo. Este movimiento de la sangre dentro del cuerpo se denomina «circulación». Las arterias transportan sangre rica en oxígeno del corazón y las venas transportan sangre pobre en oxígeno al corazón.
Explanation:
Yes, this statement is true
