March 10th EOG questions

36. what happens to most of the energy as it moves through a food web?

• a. it is changed into light energy

• b. it is changed into heat energy

• c. it is changed into mass

• d. it is changed into decomposers

37. Which is the best evidence for evolution?

• a. new rock layers containing fossils of simple organisms

• b. new rock layers containing fossils unlike existing organisms

• c. old rock layers containing fossils unlike existing organisms

• d. old rock layers containing fossils of complex organisms

38. Which best explains why mammals became dominant after the mass extinction of the dinosaurs?

• a. they had traits that helped them adapt to environmental changed

• b. they were larger than dinosaurs and ate different foods

• c. they lived in a different area on Earth than dinosaurs

• d. they were able to hibernate for thousands of years

39. which demonstrates how genetic variation may results from a change in the environment where an animal lives?

• a. a salmon swims faster as it enters colder water

• b. a snake increases its body temperature because it moves on top of a rock in direct sunlight

• c. a beetle stands out to predators because it moves among plants that have colors different than its own

• d. an arctic fox changes its color over time because it migrates to an area with a different climate

40. Where do plants get the food they need for energy?

• a. they absorb it directly from the sun

• b. they absorb it directly from the soil

• c. they produce it during photosynthesis

• d. they receive it from atmospheric gases

41. Chlorine has seven valence electrons. With what group of elements will chlorine most readily bond?

• a. group one

• b. group two

• c. group 16

• d. group 18