Answer:
d. limbic system
Explanation:
The limbic system is concerned with the major role to handle fear, pleasure, emotion, and hormonal production. The limbic system are associated with the task of regulating the production of internal secretions that are transported around the body by the bloodstream in regards to emotional signals, they also re-enforce behavior associated with fear and pleasure.
C. Since they have to gain that skill.
<span>Polypeptide
</span><span>
When Polypeptides join together, they form protein. The term Polypeptide chain is used to define the combination of Polypeptides. They are joined together by the peptide bonds. These Polypeptides are chains of amino acids. When one or more Polypeptide chains joined together, that is the time when Protein was born. As we all know, protein is very essential to our body. Because protein helps our body to function well. Protein makes our cells function properly. Can you imagine our body without protein? Thanks to Polypeptides chains that are joined together to form Protein so our body can function well. </span>
the answer i think be a area a has more predators then area b because if it was disease or lack of food source they wouldn't that low i think
