irene eats large quantities of high-calorie foods at least three times a week when she is alone or nervous. after binging, she induces vomiting. she is constantly concerned about her appearance, although she is of normal weight. an appropriate diagnosis for irene is a. binge-eating disorder b. overanxious disorder c. anorexia nervosa d. bulimia nervosa

The correct answer is D. Bulimia Nervosa

Explanation:

Bulimia Nervosa is a type of mental and eating disorder that involves binge-eating, which means the individual eats compulsively, followed by purge which is any method used by the individual to expel what has been eaten. This eating disorder is often linked to anxiety, depression, low self-esteem, and excessive preoccupation with body appearance. Additionally, like other eating disorders, this has negative consequences on health and requires treatment.

In the case of Irene, her behavior shows she has bulimia nervosa because she shows binge-eating by eating large quantities of high-calorie foods, followed by purging as she induces vomiting. Also, she is anxious and excessively worried about her appearance which is common in this eating disorder.

answer: all : )

explanation:

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.