Microscopes are often equipped with blue filters. give a reason for using blue light in a microscope

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

In a system, when potential energy decreases, then entropy also decreases. true false

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.