Compare the size of the male and female cones. Look for the pollen sacs in the male cone. (Two pollen sacs are located under each scale of the male cone.)
Look for the ovaries in the female cone. (Two parts containing the egg cells can be found on the upper side of the female cone.)
Check the hardness of each cone.
Find the sticky parts.
Try to determine whether the female cone has been fertilized.
Record your observations.

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.