1.)what tool can tiny objects and living organisms look bigger?
a.microscope
b.oscilloscope
c.stethoscope
d.telescope
2.)what is the total magnification of a microscope with two lenses when one lens has a magnification of 15× and the other lenses has a magnification of 30×?
a.15×
b.45×
c.30×
d.450×
3.)why is it necessary for the speciman to be observed under the microscope must be thin?
a.so that image will be clearer
b.so that image would be bigger
c.so that light can pass through the speciman
d.so that a high magnification objective can be used
4.)if a cell being observed is magnified 200× under a 40× HPO, what is the magnifying power of the eyepiece used?
a.the eyepiece used is 5×.
b.the eyepiece used is 10×.
c.the eyepiece used is 15×.
d.the eyepiece used is 20×
5.)in shifting the HPO, which part of the microscope is raised first?
a.arm
b.body tube
c.diaphragm
d.revolving nosepiece
6.)what is a cell?
a.basic unit of structure and function of all living things capable of performing basic life processes
b.made up of similar tissues grouped together to perform together.
c.made up of organs that have related functions and are grouped together.
d.highest level of organization in the living world.
7.)what makes up the biosphere?
a.populations living together in an area.
b.all ecosystem around the world.
c.group of organs working together.
d.group of organisms in area​