How is the variation in color and markings beneficial to the orchid plant? A It helps the flowers release seeds quickly.
B It helps the plant protect itself from herbivores.
C It helps the flowers pollinate efficiently.
D It helps the plant survive in all climatic conditions.

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

Adistinctive characteristic of mammals that is not observed in other vertebrates is