Answer:
Electron microscopes use a beam of electrons instead of beams or rays of light. Living cells cannot be observed using an electron microscope because samples are placed in a vacuum. ... the scanning electron microscope (SEM) has a large depth of field so can be used to examine the surface structure of specimens.
Explanation:
No Explanation Just Pure Common Sense
The circulatory system is the transport system for endocrine information. While the nervous system uses neurons, the endocrine chemicals and hormones must circulate through the body via blood vessels. Many glands in your body secrete hormones into the blood.
Answer: True
Explanation: They need to replicate their DNA so the daughter cells hold the same genetic information when the parent cell divides
Energy Pyrenees because it gives you representation to show which organisms form the lowest to the highest and which one contains the most Energy so it would help on how the relationship between organisms depending on the level of the ecosystem.
The correct answer is be sure that your instrument is calibrated properly. If your instrument isn't calibrated, then your data will be inconsistent.
