Which are features of Copernicus's model of the solar system? Select the three correct answers. A. Earth is fixed to a crystalline sphere.
B. All planets orbit the Sun at the same speed.
C. The planets move in perfect circles.
D. The Sun is at the center.
E. The outer planets move in epicycles.
F. The stars are fixed to an outer sphere.​

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

Anurse is caring for a client who is learning how to take care of a newly created colostomy. when observing a return demonstration of the colostomy irrigation, the nurse evaluates that more teaching is required when the client carries out what procedure?