A pulley raises a load with 70N of force. the pulley system has a mechanical advantage of 1. What is the effort force needed? *

Where can you find prokaryotic and eukaryotic cells?

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen

Ais a group of individuals of the same that exist together in the same place at the same time