Large proteins that package, order the DNA, and help with gene regulation.

Look at the following answer choices and determine which belongs in the both category. testable, can be disproven explains natural phenomena, has evidence to support it prediction, tentative, one or more scientists working together well established, many different scientists working independently, highly reliable

What are some possible short and long term medical concerns for crew members on longer space exploration trips

How can an organ, such as the lungs, work for multiple body systems?