Lunar phases occur when the moon appears to change shape as seen from earth. what causes different phases of the moon?
select one:
a. the tilt of the axis of earth
b. the shadow of earth falls on the moon
c. the alignment of the sun, moon, and earth in a straight line
d. the amount of the sunlit side of the moon that faces earth

What statements describe a host organism?

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.