Answer:
True
Explanation:
In phase-contrast objective and a phase contrast optical systems is equipped with Light microscope .
Phase contrast microscope is used to differentiate unstained structures in a cell that differ in refractive indices and thickness. Thus it is usefull for examining living unstained organisms.
Light that passed through materials of different refractive index and/or thickness will undergo a change in Phase. The difference in phase or wave front irregularities cause variation in brightness of the structures.
Hoping this might help!!!
Answer: population
Explanation:
because they are the same it cant be commuintiy
Answer:
14.to 17 hours of a 24 hour period . say the national sleep faoundation , some newbourn sleep up to 18.to 19 hours a day
Chloroplast has evolved from photosynthetic bacteria
