Fiber plays important roles in maintaining the health of which system?
a. digestive system
b. endocrine system
c. lymphatic system
d. muscular system

Always use significant figure rules. remember that these rules apply to all numbers that are measurements. if a vector that is 3 cm long represents 30 km/h, what velocity does a 5 cm long vector which is drawn using the same scale represent? a.100 km/h b.60km/h c.50km/h

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.