I know that they use it for sensing danger
Explanation:While a constant supply of freshwater happens by itself in natural streams, an aquarium is by definition, a closed system. So here, man has to help out in order to provide new..
Although recent studies suggest that posttraumatic stress disorder (PTSD) symptoms and pain may be related, the possible mediational role of depression in this relationship has not been examined. This study sought to examine this question in a sample of 130 male veterans seeking assessment or treatment for deployment-related PTSD. Results suggest that PTSD and pain are moderately related (r<span> = .29) but that this relationship is fully mediated by depression. Our findings have important clinical implications: Treatment of PTSD and pain in veteran populations should include careful assessment and regular monitoring of depression.</span>
The correct option is C.
Steroid is a type of hormone. Hormones are chemical molecules that are manufactured and secreted by endocrine glands in the human body for the purpose of carrying chemical messages from one part of the body to another part. Steroid hormones are made from cholesterol and they are soluble in lipids. Examples of steroid hormones are: androgen, progesterone, estrogen, cortisol and aldosterone.