1 and 3 is right. 2 and 4 aren't really true.
Excited electrons are those which temporarily occupy a state higher than their ground state
The electron is excited if it is given extra energy, such as when a photon, or packet of light, absorbs it or if it collides with an atom.
Answer:
Controls the amount of light passing through the specimen. Found between the objective lenses and the ocular lenses.
Explanation:
The diaphragm, is the part of the microscope that works like in a camera, is an opening that regulates the quantity of light that passes through the specimen, and this is useful because in this way the specimen can be easily seen some structures like certain organelles.
It is localized normally in the base, between the light source and the sample, so it can regulate the quantity of light.
Answer:
Cell body
Explanation:
https://quizlet.com/19339488/chapter-3-flash-cards/