an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.A microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope.

4 0

3 years ago

Organisms can be made up of many _____________, which could be arranged into ________________, which can make up _______________

Sonja [21]

Organisms can be made up of many cells, which could be arranged into tissues which can make up organs, organs can be part of a(n) system. These are........i don't really know after this since you didn't give a lot to work with and i'm not even sure if this is right or not lol.

5 0

4 years ago

Where does positive selection of t cells occur?

erik [133]

Positive selection of t cells occur in .the thymus

3 0

4 years ago

Help plzzzzzzzzzzzzzzz

slamgirl [31]

Answer:

B) they make the spindle fibers

Explanation: