Organisms must respond to changes in their environment in order to survive. Which of the following is an example of a physical response to an environmental change?
O a bear hibernating in winter
O a bird migrating when the season changes
O a dolphin performing tricks for food at an aquarium
O a plant turning so that its leaves face the sunlight

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte