D the formation of specicies
<span>Lymbic syste. These three parts are seen under the cerebrum as on both sides of thalamus. The function of these parts include controlling memories and emotions. It is a complex system of neurons. Hypothalamus is concerned primarily with homoeostasis, Hippocampus is the centreof memories and amygdala is sudden responses.</span>
What are his observations? We can’t answer this without knowing his observations if those are the conclusions. Please provide the rest of the information and I can answer.
There has to be one side with a high concentration and another side with a lower concentration
Examples of physical changes in properties are melting, transition to a gas, crystallization, etc