Can someone help me? I don’t understand this. A) How are traits inherited in this pedigree? (the one in the image)

B) What is your evidence?

Nucleic acid certain protein cell membranes certain carbohydrates

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

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.