The patient who was not feeling well told the doctor her head hurt and that she was experiencing blurry vision with her eyesight. which answer choice is the best revision of the sentence to avoid repetition? not feeling well, the patient told the doctor about her problems with her hurting head and blurry vision in her eyesight. the patient told the doctor about the symptoms affecting both her head and eyesight. the patient told the doctor about her blurry vision in her eyesight and her hurting headache problems. the doctor’s patient told the doctor that her head hurt and her eyesight was blurry.

Option A is the right answer.

Repetition is the act of repeating something that has previously been stated or recorded. Though we can repeat some words in the formation of a sentence, it creates a sentence very unattractive. Therefore, by changing some words, or by changing some form of the sentence we can avoid repetition. As in the given statement, the repetition of words can be replaced by option A. Avoiding repetition with some other words does not change the meaning of the sentence of the statement.

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.