What is the common difference for this arithmetic sequence? 54, 50, 46, 42, 38, ...
A. 4
B. 54
C. 34
O D. -4

Afamily has a y-linked disease that affects the father. what is the chance of a male offspring inheriting the same disease? oa. 100% ob. 50% oc. 25% d. 0%

Which blood cell spend most of their time in the lymphatic system?

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community