Which of the following would be the latest in the development of a human fetus? Bone starts to replace cartilage to form the beginnings of a skeleton.
The fetus grows to reach approximately eight centimeters in length.
Cells divide into the endoderm, mesoderm, and ectoderm.
The nervous system begins to develop and can control basic body functions.
(free point)

Organisms that successfully adapt will leave to grownone of the above

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

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.