The answer is hard tissue.
Usually, hard tissue, such as bones and teeth or exoskeleton is much more preserved than soft tissue (organs, skin, etc.). Fossils become fossils by a process of mineralization. Hard tissues are more mineralized during life than organs. So it is no surprise that hard tissues take part in the process of mineralization and is preserved in fossils, unlike soft tissues.
Ice because it releaves the precer that the needle has put in it.
Assuming the options are: (Thalamus)
brain stem
thalamus
cerebrum
hippocampus
The thalamus is a large mass of gray matter in the dorsal part of the diencephalon of the brain with several functions such as relaying of sensory signals, including motor signals to the cerebral cortex, and the regulation of consciousness, sleep, and alertness.
At right angles to each
other, it is important to take at least two films (or two views) of the
specified anatomical area since you might see things in one view that
you would not see in the other since two views give two different perspectives
if
<span>Moving them multiple times
could cause severe discomfort or pain if the animal is severely injured in
small animal medicine.</span>