Malika is writing an essay about the sun. below is the first paragraph in the essay. the sun is an average-size star that is located at the center of the solar system. this hot, glowing ball of gas has a diameter of 1,393,000 km. this means 109 earths would fit side by side across the diameter of the sun. at the surface, the sun’s temperature is about 550 degrees celsius. earth is located just under 150 million kilometers from the sun. malika quickly realizes this paragraph contains an error. which statement identifies the error? the sun is a large star, not an average-size star. the sun is not a glowing ball of gas—it is solid. the sun’s surface temperature is about 5500 degrees celsius. earth is located over 300 million kilometers from the sun.

The correct answers is option D, Earth is located over 300 million kilometers from the Sun.

Reason -

The distance between earth and the sun is varying at different set of time in a year. It is the nearest to us when it is at a distance of 147.1 million Km and it is farthest when it is at a distance of 152.1 Km.

The other options provided in the question are true to their full sense. Sun is the biggest star in our galaxy neighborhood but it is just an average star when compared to other stars. Also the surface (photosphere) temperature of sun is 10,000 degrees Fahrenheit (5,500 degrees Celsius).Sun is ball of gas where nuclear fusion is always actively occurring.  

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

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.